Netgear C3700 Manual
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NETGEAR, Inc.
NETGEAR, Inc.
NETGEAR, Inc.
NETGEAR, Inc.NETGEAR, Inc.
350 East Plumeria Drive
San Jose, CA 95134, USA
March 2021
202-12218-01
User Manual
N600 WiFi Cable Modem Router
C3700
N600 WiFi Cable Modem Router Model C3700
N600 WiFi Cable Modem Router Model C3700
N600 WiFi Cable Modem Router Model C3700
N600 WiFi Cable Modem Router Model C3700 N600 WiFi Cable Modem Router Model C3700
User Manual2
Support and Community
Support and Community
Support and Community
Support and CommunitySupport and Community
Visit netgear.com/support to get your questions answered and access the latest downloads.
You can also check out our NETGEAR Community for helpful advice at community.netgear.com.
Customer-owned cable devices might not be compatible with certain cable networks. Check with your
cable Internet provider to confirm that this NETGEAR cable device is allowed on your cable network.
If you are experiencing trouble installing your cable device, contact NETGEAR at 1-866-874-8924.
Note to CATV system installer: This reminder is provided to call the CATV systems installer’s attention
to Section 820-93 of the National Electrical Code, which provide guidelines for proper grounding
and in particular, specify that coaxial cable shield shall be connected to the grounding system of the
building, as close to the point of cable entry as practical.
Regulatory and Legal
Regulatory and Legal
Regulatory and Legal
Regulatory and LegalRegulatory and Legal
Si ce produit est vendu au Canada, vous pouvez accéder à ce document en français canadien à
https://www.netgear.com/support/download/.
(If this product is sold in Canada, you can access this document in Canadian French at
https://www.netgear.com/support/download/.)
For regulatory compliance information including the EU Declaration of Conformity, visit
https://www.netgear.com/about/regulatory/.
See the regulatory compliance document before connecting the power supply. For NETGEAR’s Privacy
Policy, visit https://www.netgear.com/about/privacy-policy.
By using this device, you are agreeing to NETGEAR’s Terms and Conditions at
https://www.netgear.com/about/terms-and-conditions. If you do not agree, return the device to your
place of purchase within your return period.
Trademarks
Trademarks
Trademarks
TrademarksTrademarks
©NETGEAR, Inc. NETGEAR and the NETGEAR Logo are trademarks of NETGEAR.
3
Contents
Chapter 1
Chapter 1
Chapter 1
Chapter 1Chapter 1
Hardware Setup
Hardware Setup
Hardware Setup
Hardware SetupHardware Setup
Unpack Your Modem Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Front Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Position Your Gateway. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Cable Your Modem Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Cable the Modem Router with a Simple Network . . . . . . . . . . . . . . . . . .12
Cable Your Modem Router to a Router or Gateway . . . . . . . . . . . . . . . .12
Chapter 2
Chapter 2
Chapter 2
Chapter 2Chapter 2
Connect to the Ne
Connect to the Ne
Connect to the Ne
Connect to the NeConnect to the Network and Access
twork and Access
twork and Access
twork and Access twork and Access the Modem Router
the Modem Router
the Modem Router
the Modem Routerthe Modem Router
Connect to the Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Wired Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
WiFi Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Types of Logins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Log In to the Modem Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Chapter 3
Chapter 3
Chapter 3
Chapter 3Chapter 3
Specify Initial Settings
Specify Initial Settings
Specify Initial Settings
Specify Initial SettingsSpecify Initial Settings
Notify Your Internet Service Provider. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Specify the Cable Connection Starting Frequency. . . . . . . . . . . . . . . . . . . . 21
View Modem Router Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Specify the Internet Connection Settings . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Chapter 4
Chapter 4
Chapter 4
Chapter 4Chapter 4
Control Access to the Internet
Control Access to the Internet
Control Access to the Internet
Control Access to the InternetControl Access to the Internet
Use Keywords to Block Internet Sites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Block Services from the Internet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Schedule When to Block Internet Sites and Services . . . . . . . . . . . . . . . . .30
Avoid Blocking on a Trusted Computer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Set Up Security Event Email Notifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Chapter 5
Chapter 5
Chapter 5
Chapter 5Chapter 5
Share a USB Drive Attach
Share a USB Drive Attach
Share a USB Drive Attach
Share a USB Drive AttachShare a USB Drive Attached to the Modem Router
ed to the Modem Router
ed to the Modem Router
ed to the Modem Routered to the Modem Router
USB Drive Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Access a USB Drive on the Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Control Access to the USB Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Use FTP Within the Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
View or Change Network Folders on a USB Drive . . . . . . . . . . . . . . . . . . . .38
Add a Network Folder on a USB Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
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Edit a Network Folder on a USB Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
Approve USB Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Safely Remove a USB Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Chapter 6
Chapter 6
Chapter 6
Chapter 6Chapter 6
Specify Network Settings
Specify Network Settings
Specify Network Settings
Specify Network SettingsSpecify Network Settings
View or Change the WAN Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
Change the MTU Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Set Up a Default DMZ Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Change the Modem Router’s Device Name . . . . . . . . . . . . . . . . . . . . . . . . . 49
Change the LAN TCP/IP Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Specify the IP Addresses That the Modem Router Assigns . . . . . . . . . . . . .51
Reserve LAN IP Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Use the WPS Wizard for WiFi Connections . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Specify Basic WiFi Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Change the WiFi Security Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Set Up a WiFi Guest Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Control the Wireless Radios . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Use the WiFi On/Off Button. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
Enable or Disable the Wireless Radios . . . . . . . . . . . . . . . . . . . . . . . . . . .60
Specify WPS Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Set Up a Wireless Card Access List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Dynamic DNS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Improve Network Connections with Universal Plug and Play . . . . . . . . . . . 65
Chapter 7
Chapter 7
Chapter 7
Chapter 7Chapter 7
Manage Your Network
Manage Your Network
Manage Your Network
Manage Your NetworkManage Your Network
View Modem Router Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68
View Cable Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68
View Internet Port Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
Wireless Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70
Reboot the Modem Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
Change the Router Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72
View Logs of Modem Router Activity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
View a Network Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Manage the Modem Router Configuration File . . . . . . . . . . . . . . . . . . . . . . 75
Back Up Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75
Restore Configuration Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75
Erase the Current Configuration Settings . . . . . . . . . . . . . . . . . . . . . . . . .76
Change the admin Password. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77
View Event Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Run the Ping Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Run the Traceroute Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
View Wireless Access Points in Your Area . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
View or Change the Modem Router Wireless Channel . . . . . . . . . . . . . . . . 81
Remote Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
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Chapter 8
Chapter 8
Chapter 8
Chapter 8Chapter 8
Specify Internet Port Settings
Specify Internet Port Settings
Specify Internet Port Settings
Specify Internet Port SettingsSpecify Internet Port Settings
Set Up Port Forwarding to a Local Server . . . . . . . . . . . . . . . . . . . . . . . . . . .86
Add a Custom Port Forwarding Service . . . . . . . . . . . . . . . . . . . . . . . . . .87
Edit a Port Forwarding Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .88
Delete a Port Forwarding Entry. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89
Application Example: Make a Local Web Server Public . . . . . . . . . . . . .89
How the Modem Router Implements the Port Forwarding Rule . . . . . .90
Set Up Port Triggering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Add a Port Triggering Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91
Specify When to Use Port Triggering. . . . . . . . . . . . . . . . . . . . . . . . . . . . .92
Application Example: Port Triggering for Internet Relay Chat . . . . . . .93
Chapter 9
Chapter 9
Chapter 9
Chapter 9Chapter 9
Troubleshooting
Troubleshooting
Troubleshooting
TroubleshootingTroubleshooting
Use LEDs to Troubleshoot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .96
Cannot Log In to the Modem Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Troubleshoot the ISP Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Troubleshoot a TCP/IP Network Using a Ping Utility . . . . . . . . . . . . . . . . . . 97
Use PIng to Test the LAN Path to Your Gateway . . . . . . . . . . . . . . . . . . .99
Use Ping to Test the Path from a Windows PC to a Remote Device . . .99
Appendix A
Appendix A
Appendix A
Appendix AAppendix A
Supplemental Information
Supplemental Information
Supplemental Information
Supplemental InformationSupplemental Information
Factory Default Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Technical Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .103
6
1
1Hardware Setup
This chapter covers the following topics:
•Unpack Your Modem Router
•Front Panel
•Rear Panel
•Position Your Gateway
•Cable Your Modem Router
For more information about the topics covered in this manual, visit the support website at
http://support.netgear.com.
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Hardware Setup User Manual7
Unpack Your Modem Router
Your package contains the following items.
Ethernet cable
Power adapterModem router
Figure 1. Package contents
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Hardware Setup User Manual8
Front Panel
The modem router has status LEDs and buttons on the front.
Power LED
Downstream LED
Upstream LED
Internet LED
WPS button / LED
WiFi On/Off button
5 GHz LED
2.4 GHz LED
Ethernet LED
USB LED
Figure 2. Modem router front view
You can use the LEDs to verify status and connections. The following table lists and
describes each LED and button on the front panel of the modem router.
LED Description
WPS button with
LEDThis button lets you use WPS to join the WiFi network without typing the WiFi password.
The WPS LED blinks during this process and then lights solid.
WiFi On/Off but-
ton with LEDPressing this button for two seconds turns the WiFi radios in the modem router on and off. If
this LED is lit, the WiFi radios are on. If this LED is off, the WiFi radios are turned off and
you cannot use WiFi to connect to the modem router.
Power
• Green. Power is supplied to the modem router.
• Off. No power is supplied to the modem router.
Downstream• Solid green. One or more downstream channels are locked.
• Blinking green. The unit is scanning for a downstream channel.
• Off. No downstream channel is locked.
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Upstream• Solid green. One or more upstream channels are locked.
• Blinking green. The unit is scanning for an upstream channel.
• Off. No upstream channel is locked.
Internet• Solid green. The modem router is online.
• Blinking green. The modem router is synchronizing with the cable provider’s cable
modem termination system (CMTS).
• Off. The modem router is offline.
2.4 GHz radio
• Green. The 2.4 GHz radio is on.
• Off. The 2.4 GHz radio is off.
5 GHz radio
• Green. The 5 GHz radio is on.
• Off. The 5 GHz radio is off.
Ethernet
• Green. A device is connected to an Ethernet port and powered on.
• Off. No device is connected to an Ethernet port.
USB
• Green. A USB device is connected to the port on the back panel.
• Off. No USB device is connected to the port on the back panel.
LED Description
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Hardware Setup User Manual10
Rear Panel
The rear panel has the connections and buttons shown the following figure.
Power adapter input
Ethernet LAN ports
Coaxial cable connector
Power On/Off button
USB port
Figure 3. Modem router rear panel
Position Your Gateway
The modem router lets you access your network anywhere within the operating range of your
wireless network. However, the operating distance or range of your wireless connection can
vary significantly depending on the physical placement of your modem router. For example,
the thickness and number of walls the wireless signal passes through can limit the range.
Additionally, other wireless access points in and around your home might affect your modem
router’s signal. Wireless access points are modem routers, repeaters, WiFi range extenders,
or any other device that emits a wireless signal for network access.
Position your modem router according to the following guidelines:
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Hardware Setup User Manual11
•Place your modem router near the center of the area where your computers and other
devices operate, and within line of sight to your wireless devices.
•Make sure that the modem router is within reach of an AC power outlet and near Ethernet
cables for wired computers.
•Place the modem router in an elevated location, minimizing the number walls and ceilings
between the modem router and your other devices.
•Place the modem router away from electrical devices such as these:
-Ceiling fans
-Home security systems
-Microwaves
-Computers
-Base of a cordless phone
-2.4 GHz cordless phone
•Place the modem router away from large metal surfaces, large glass surfaces, and
insulated walls such as these:
-Solid metal door
-Aluminum studs
-Fish tanks
-Mirrors
-Brick
-Concrete
•(Optional) If you have adjacent access points, use different radio frequency channels to
reduce interference.
Cable Your Modem Router
The most common way to cable your modem router is the simplest, without any other routers
or gateways on the same network. You can also cable the modem router to another router or
gateway and log in to the modem router to specify this setting.
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Cable the Modem Router with a Simple Network
The modem router comes configured to work as both a modem and a router. You can share
your Internet connection without connecting the modem router to a router or gateway.
Modem router
Power On/Off
Power adapter
Coaxial cable
button
Figure 4. Modem router simple network
To cable your modem router:
1. Connect a coaxial cable.
Use the coaxial cable that your cable company provides to connect the cable port on the
modem router to a cable wall outlet or a line splitter.
Note: If Charter is your cable Internet service provider (ISP), Charter
recommends connecting your modem router directly to a cable wall
outlet. If you must use a splitter, use a splitter that is rated at 3.5 dBmv.
2. Connect the power adapter to the modem router and plug the power adapter in to an
electrical outlet.
3. Press the Power On/Off button on the rear panel of the modem router.
The Power LED lights green.
You can log in to the modem router to view or change its settings.
Cable Your Modem Router to a Router or Gateway
If you want to cable the modem router to a router or gateway, then you must log in to the
modem router and change its Router Mode setting. Changing this setting prevents certain
network conflicts that can occur when two devices on the same network perform routing
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Your change is saved.
12. Follow the instructions that came with your router to connect it to the modem router.
15
2
2Connect to the Network and
Access the Modem Router
This chapter contains the following sections:
•Connect to the Network
•Types of Logins
•Log In to the Modem Router
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Connect to the Network and Access the
Modem Router
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Connect to the Network
You can connect to the modem router’s network through a wired or WiFi connection. If you
set up your computer to use a static IP address, change the settings so that it uses Dynamic
Host Configuration Protocol (DHCP).
Wired Connection
You can connect your computer to the modem router using an Ethernet cable and join the
modem router’s local area network (LAN).
To connect your computer to the modem router with an Ethernet cable:
1. Make sure that the modem router has power (its Power LED is lit).
2. Connect an Ethernet cable to an Ethernet port on your computer.
3. Connect the other end of the Ethernet cable to one of the numbered Ethernet ports.
Your computer connects to the local area network (LAN). A message might display on
your computer screen to notify you that an Ethernet cable is connected.
WiFi Connection
You can connect to the modem router’s WiFi network with Wi-Fi Protected Setup (WPS) or
you can find and select the WiFi network.
To use WPS to connect to the WiFi network:
1. Make sure that the modem router has power (its Power LED is lit).
2. Check the WPS instructions for your computer or wireless device.
3. Press the WPS button on the modem router.
4. Within two minutes, on your computer or WiFi device, press its WPS button or follow its
instructions for WPS connections.
Your computer or wireless device connects to the WiFi network.
To find and select the WiFi network:
1. Make sure that the modem router has power (its Power LED is lit).
2. On your computer or wireless device, find and select the WiFi network.
The WiFi network name is on the modem router’s label.
3. Join the WiFi network and enter the WiFi password.
The password is on the modem router’s label.
Your wireless device connects to the WiFi network.
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Label
The label on the modem router shows the login information, MAC address, and serial
number.
Figure 5. Modem router label
Types of Logins
Separate types of logins have different purposes. It is important that you understand the
difference so that you know which login to use when.
Types of logins:
• ISP login. The login that your ISP gave you logs you in to your Internet service. Your
service provider gave you this login information in a letter or some other way. If you
cannot find this login information, contact your service provider.
• WiFi network key or password. Your modem router is preset with a unique wireless
network name (SSID) and password for wireless access. This information is on the
modem router label.
• Modem router login.This logs you in to the modem router interface from a web browser
as admin.
Log In to the Modem Router
When you connect to the network (either with WiFi or with an Ethernet cable), you can use a
web browser to access the modem router to view or change its settings. The first time you
access the modem router, NETGEAR genie automatically checks to see if your modem
router can connect to your Internet service.
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To log in to the modem router:
1. Launch a web browser from a computer or wireless device that is connected to the
network.
2. http://192.168.0.1Type http://routerlogin.net or .
A login screen displays.
3. Enter the modem router user name and password.
The user name is admin. The default password is password. The user name and
password are case-sensitive.
The BASIC Home screen displays.
19
3
3Specify Initial Settings
This chapter contains the following sections:
•Notify Your Internet Service Provider
•Specify the Cable Connection Starting Frequency
•View Modem Router Initialization
•Specify the Internet Connection Settings
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Notify Your Internet Service Provider
You must contact your Internet service provider (ISP) and tell them that you are using the
modem router.
To set up your Internet connection:
1. Contact your cable ISP and inform them that you are installing a new modem router that
you bought from a retail store.
Provide your cable ISP with the modem router’s model number, which is C3700.
Note: The modem router is certified by all major cable ISPs.
You can also visit your cable ISP’s website and follow the onscreen instructions to set up
your Internet service.
Table 1.
Cable ISP Contact Information
https://www.cox.com/residential/support/home.html
https://www.cox.com/activate
1-888-556-1193
https://support.mediacomcable.com
1-855-Mediacom (1-855-633-4226)
https://www.optimum.net/support/contact-us
https://install.optimum.com/JointInstall
1-877-810-6750
https://support.sparklight.com
1-877-692-2253
https://www.spectrum.net/contact-us
https://activate.spectrum.net
1-833-267-6094
https://www.xfinity.com/internetsetup
Use the Xfinity app for Xfinity activation.
Note: The contact information listed might change. You can also find the
contact number in your monthly Internet service billing statement.
2. When asked, provide the modem router’s serial number and MAC address on the product
label.
Cox
Mediacom
Optimum
Sparklight
Spectrum
Xfinity
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3. Wait for your cable ISP to confirm that your modem router is active.
4. If you do not have an Internet connection with the modem router, ask your cable ISP to look
for your modem router online, and do one of the following depending on what your cable ISP
tells you about your modem router:
•If the modem router is not visible, your cable ISP can give you instructions to verify
why the modem router does not connect with your high-speed Internet service.
•If the modem router is visible to your cable ISP, reboot the computer, laptop, or home
gateway that is connected to the modem router. Try checking your online status again.
Specify the Cable Connection Starting
Frequency
The starting frequency is automatically generated. For most Internet connections, you do not
need to specify this information. If you need to enter a starting frequency, contact your
Internet service provider.
To change the starting frequency:
1. Launch a web browser from a computer or wireless device that is connected to the
network.
2. Type http://routerlogin.net or http://192.168.0.1.
A login screen displays.
3. Enter the modem router user name and password.
The user name is admin. The default password is password. The user name and
password are case-sensitive.
The BASIC Home screen displays.
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4. Select Cable Connection.
5. Enter an number in the Starting Frequency field.
6. Click the Apply button.
View Modem Router Initialization
You can track the initialization procedure of the modem router, and get details about the
downstream and upstream cable channel. The time is displayed after the modem router is
initialized.
The modem router automatically goes through the following steps in the provisioning
process:
•Scans and locks the downstream frequency and then ranges the upstream channels.
•Obtains a WAN address for the modem router.
•Connects to the Internet.
To view the status of the modem router initialization:
1. Launch a web browser from a computer or wireless device that is connected to the
network.
2. Type http://routerlogin.net or http://192.168.0.1.
A login screen displays.
3. Enter the modem router user name and password.
The user name is admin. The default password is password. The user name and
password are case-sensitive.
The BASIC Home screen displays.
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Specify the Internet Connection Settings
You can view or change the modem router’s Internet connection settings.
To specify the Internet connection settings:
1. Launch a web browser from a computer or wireless device that is connected to the
network.
2. Type http://routerlogin.net or http://192.168.0.1.
A login screen displays.
3. Enter the modem router user name and password.
The user name is admin. The default password is password. The user name and
password are case-sensitive.
The BASIC Home screen displays.
4. Select ADVANCED > Setup > Internet Setup.
5. If your Internet connection requires an account name or host name, type it in the Account
Name (If Required) field.
6. If your Internet connection requires a domain name, type it in the Domain Name (If
Required) field.
For the other sections in this screen, the default settings usually work, but you can
change them.
7. For the Internet IP Address setting, select one of the following radio buttons:
• Get Dynamically from ISP. Your ISP uses DHCP to assign your IP address. Your ISP
automatically assigns these addresses.
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• Use Static IP Address. Enter the IP address, IP subnet mask, and the gateway IP
address that your ISP assigned. The gateway is the ISP modem router to which your
modem router connects.
8. For the Domain Name Server (DNS) Address setting, select one of the following radio
buttons:
• Get Automatically from ISP. Your ISP uses DHCP to assign your DNS servers. Your
ISP automatically assigns this address.
• Use These DNS Servers. If you know that your ISP requires specific servers, select
this option. Enter the IP address of your ISP’s primary DNS server. If a secondary
DNS server address is available, enter it also.
9. Click the Apply button.
Your settings are saved.
Note: If you get address not found errors when you go to a website, it is
likely that your DNS servers are not set up correctly. Contact your ISP
to get the DNS server addresses.
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4
4Control Access to the Internet
This chapter explains how to prevent objectionable content from reaching the computers and
other devices that are connected to your network.
This chapter includes the following sections:
•Use Keywords to Block Internet Sites
•Block Services from the Internet
•Schedule When to Block Internet Sites and Services
•Avoid Blocking on a Trusted Computer
•Set Up Security Event Email Notifications
Use Keywords to Block Internet Sites
You can use keywords to block certain Internet sites from your network. You can use
blocking all the time or based on a schedule.
To block Internet sites:
1. Launch a web browser from a computer or wireless device that is connected to the
network.
2. Type http://routerlogin.net or http://192.168.0.1.
A login screen displays.
3. Enter the modem router user name and password.
The user name is . The default password is admin password. The user name and
password are case-sensitive.
The BASIC Home screen displays.
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4. Select ADVANCED > Security > Block Sites .
5. Select one of the keyword blocking options:
• Per Schedule. Turn on keyword blocking according to the Schedule screen settings.
(See Schedule When to Block Internet Sites and Services on page 30.)
• Always. Turn on keyword blocking all the time, independent of the Schedule screen.
6. In the Keyword field, enter a keyword or domain that you want to block.
For example:
•Specify XXX to block http://www.badstuff.com/xxx.html.
•Specify .com if you want to allow only sites with domain suffixes such as .edu or .gov.
•Enter a period (.) to block all Internet browsing access.
7. Click the Add Keyword button.
The keyword is added to the keyword list. The keyword list supports up to 32 entries.
8. Click the Apply button.
Keyword blocking takes effect.
To delete keywords from the list:
1. Launch a web browser from a computer or wireless device that is connected to the
network.
2. Type http://routerlogin.net or http://192.168.0.1.
A login screen displays.
3. Enter the modem router user name and password.
The user name is admin. The default password is password. The user name and
password are case-sensitive.
The BASIC Home screen displays.
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4. Select ADVANCED > Security > Block Sites.
5. Do one of the following:
•To delete a single word, select it and click the Delete Keyword button.
The keyword is removed from the list.
• To delete all keywords on the list, click the Clear List button.
All keywords are removed from the list.
6. Click the Apply button.
Your changes are saved.
Block Services from the Internet
You can block Internet services on your network based on the type of service. You can block
the services all the time or based on a schedule.
To block services:
1. Launch a web browser from a computer or wireless device that is connected to the
network.
2. Type http://routerlogin.net or http://192.168.0.1.
A login screen displays.
3. Enter the modem router user name and password.
The user name is admin. The default password is password. The user name and
password are case-sensitive.
The BASIC Home screen displays.
4. Select ADVANCED > Security > Block Services.
5. Specify when to block the services:
•To block the services all the time, select the Always radio button.
•To block the services based on a schedule, select the Per Schedule radio button.
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Schedule When to Block Internet Sites and
Services
When you schedule blocking, the same schedule is used to block sites and to block services.
For information about how to specify what you want the modem router to block, see Use
Keywords to Block Internet Sites on page 26 and Block Services from the Internet on
page 28.
To schedule blocking:
1. Launch a web browser from a computer or wireless device that is connected to the
network.
2. http://192.168.0.1Type http://routerlogin.net or .
A login screen displays.
3. Enter the modem router user name and password.
The user name is admin. The default password is password. The user name and
password are case-sensitive.
The BASIC Home screen displays.
4. Select ADVANCED > Security > Schedule.
5. Specify when to block keywords and services:
• Days to Block. Select the check box for each day that you want to block the
keywords or select the Every Day check box, which automatically selects the check
boxes for all days.
• Time of Day to Block. Select a start and end time in 24-hour format, or select All
Day for 24-hour blocking.
6. Select your time zone from the list.
7. If you use daylight saving time, select the Automatically adjust for daylight savings time
check box.
8. Click the Apply button.
Your settings are saved.
Avoid Blocking on a Trusted Computer
You can exempt one trusted computer from blocking. The computer you exempt must have a
fixed IP address. You can use the reserved IP address feature to specify the IP address. See
Reserve LAN IP Addresses on page 52.
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To specify a trusted computer:
1. Launch a web browser from a computer or wireless device that is connected to the
network.
2. Type http://routerlogin.net or http://192.168.0.1.
A login screen displays.
3. Ente r the modem router user name and password.
The user name is adm in. The default password is password. The user name and
password are case-sensitive.
The BASIC Home screen displays.
4. Select AD VANCED > Security > Block Sites.
5. Scroll down and select the Allow trusted IP address to visit blocked sites check box.
6. In the Trusted IP Address field, enter the IP address of the trusted computer.
7. Click the Ap ply button.
Your changes are saved.
Set Up Security Event Email Notifications
The modem router can email you its logs. The log records modem router activity and security
events such as attempts to access blocked sites or services.
To set up email notifications:
1. Launch a web browser from a computer or wireless device that is connected to the
network.
2. Type http://routerlogin.net or http://192.168.0.1.
A login screen displays.
3. Ente r the modem router user name and password.
The user name is adm in. The default password is password. The user name and
password are case-sensitive.
The BASIC Home screen displays.
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4. Select ADVANCED > Security > .E-mail
5. Select the Turn E-mail Notification On check box.
6. In the Your Outgoing Mail Server field, enter the name of your ISP outgoing (SMTP) mail
server (such as mail.myISP.com).
You might be able to find this information in th e configuration screen of your email
program. If you leave this field blank, log and alert messages are not sent.
7. Enter th e email address to which logs and alerts are sent in the Send to This E-mail
Address field.
This email address is also used for the From address. If this field is blank, log and alert
messages are not sent.
8. If your outgoing email server requires authentication, select the My Mail Server requires
authentication check box.
a. In the User Name field, type the user name for the outgoing email server.
b. In the Password field, type the password for the outgoing email server.
9. To send alerts when someone attempts to visit a blocked site, select the Send Alerts
Immediately check box.
10. To send logs based on a schedule, specify these settings:
• From Send logs according to this schedule drop-down list, select the schedule
type.
• From the Day drop-down list, select the day.
• From the Ti me drop-down list, select the time, and select the am or pm radio button.
11. Click the Appl y button.
Your settings are saved.
Logs are sent automatically. If the log fills up before the specifie d time, it is sent. After the
log is sent, it is cleared from the modem router memory. If the modem router cannot email
the log and the log buffer fills up, the modem router overwrites the log.
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5
5Share a USB Drive Attached to the
Modem Router
This chapter describes how to access and configure a USB storage drive attached to your
modem router. The USB port on the modem router can be used only to connect USB storage
devices like flash drives or hard drives, or a printer. Do not connect computers, USB modems,
CD drives, or DVD drives to the modem router USB port.
This chapter contains the following sections:
• USB Drive Requirements
• Access a USB Drive on the Network
• Control Access to the USB Drive
• Use FTP Within the Network
• View or Change Network Folders on a USB Drive
• Add a Network Folder on a USB Drive
• Edit a Network Folder on a USB Drive
• Approve USB Devices
• Safely Remove a USB Drive
For more information about ReadySHARE features, visit . www.netgear.com/readyshare
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USB Drive Requirements
The modem router works with most USB-compliant external flash and hard drives. For the
most up-to-date list of USB drives that the modem router supports, visit
http://kbserver.netgear.com/readyshare.
Some USB external hard drives and flash drives require you to load the drivers onto the
computer before the computer can access the USB device. Such USB devices do not work
with the modem router.
The modem router supports the following file system types for full read/write access:
• FAT16, FAT32
• NTFS
• NTFS with compression format enabled
• Ext2, Ext3, Ext4
• XFS
• HFS
• HFS+
Access a USB Drive on the Network
ReadySHARE lets you access and share a USB drive connected to the modem router USB
port. (If your USB drive has special drivers, it is not compatible.)
To connect a USB drive:
1. Insert your USB storage drive into the USB port on the rear panel of the modem router.
2. If your USB drive has a power supply, you must use it when you connect the USB drive to
the modem router.
When you connect the USB drive to the modem router USB port, it might take up to two
minutes before it is ready for sharing. By default, the USB drive is available to all
computers on your local area network (LAN).
To access the USB drive from a Mac:
1. Select Go > Connect to Server.
2. Enter smb://readyshare as the server address.
3. Click the Connect button.
To access the USB drive from a Windows computer:
1. Select Start > Run.
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2. Enter \\readyshare in the dialog box and click the OK button.
To map the USB device to a Windows network drive:
1. Visit www.netgear.com/readyshare.
2. In the ReadySHARE USB Storage Access pane, click PC Utility.
The read yshareconnect.exe file is downloaded to your computer.
3. Launch read yshareconnect.exe.
4. Select the drive letter to map to the network folder.
5. (Optional) If you want to connect to the USB drive as a different user, select the Connect
using different credentials check box.
a. Type the user name and password.
b. Click the OK b utton.
6. Click the Fini sh button.
The USB drive is mapped to the drive letter that you specified.
Control Access to the USB Drive
You can specify the device name, workgroups, and network folders for your USB device.
To specify the USB access settings:
1. Launch a web browser from a computer or wireless device that is connected to the
network.
2. Type http://routerlogin.net or http://192.168.0.1.
A login screen displays.
3. Ente r the modem router user name and password.
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The user name is admin. The default password is password. The user name and
password are case-sensitive.
The BASIC Home screen displays.
4. Select A DVANCED > USB Storage > Advanced Settings.
5. Specify access to the USB storage device:
• Network Device Name. This is the n ame used to access the USB device connected
to the modem router. The default is readyshare.
• Workgroup. If yo u are using a Windows workgroup rather than a domain, the
workgroup name is displayed here. The name works only in an operating system that
supports NetBIOS, such as Microsoft Windows.
• Access Method. Select the check boxes for the access methods that you want:
- Network Neighborhood/MacShare. Enabled by default.
- HTTP. Enabled by default. You can type
http://readyshare.routerlogin.net/shares to access the USB drive.
- HTTP (via Internet). Disabled by default. If you enable this feature, remote users
can type http://<public IP address/shares> (for example, http://1.1.10.102/shares)
or a URL domain name to access the USB drive over the Internet. This feature
supports file uploading only.
- FTP. Disab led by default.
- FTP (via Internet). Disabled by default. If you select this check box, remote users
can access the USB drive through FTP over the Internet. This feature supports
both downloading and uploading of files.
6. If you changed the settings, click the Apply button.
Your changes are saved.
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Use FTP Within the Network
File Transfer Protocol (FTP) lets you send and receive large files faster.
To set up FTP access:
1. Launch a web browser from a computer or wireless device that is connected to the
network.
2. Type http://routerlogin.net or http://192.168.0.1.
A login screen displays.
3. Enter the modem router user name and password.
The user name is admin. The default password is password. The user name and
password are case-sensitive.
The BASIC Home screen displays.
4. Select ADVANCED > USB Storage > Advanced Settings.
5. Select the FTP check box.
6. Click the Apply button.
Your changes are saved.
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View or Change Network Folders on a USB
Drive
You can view or change the network folders on the USB storage device
To view or change network folders:
1. Launch a web browser from a computer or wireless device that is connected to the
network.
2. Type http://routerlogin.net or http://192.168.0.1.
A login screen displays.
3. Enter the modem router user name and password.
The user name is admin. The default password is password. The user name and
password are case-sensitive.
The BASIC Home screen displays.
4. Select ADVANCED > USB Storage > Advanced Settings.
5. Scroll down to the Available Networks Folder section of the screen, and adjust the following
settings:
• Share Name. If only one device is connected, the default share name is
USB_Storage. (Some modem router models have more than one USB port.)
You can click the name or type it in the address field of your web browser. If Not
Shared is shown, the default share has been deleted, and no other share for the root
folder exists. Click the link to change this setting.
• Read Access and Write Access. Show the permissions and access controls on the
network folder. All – no password (the default) allows all users to access the network
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folder. The password for admin is the same one that you use to log in to the modem
router.
• Folder Name. Full path of the network folder.
• Volume Name. Volume name from the storage device (either USB drive or HDD).
• Total Space and Free Space. Show the current utilization of the storage device.
Add a Network Folder on a USB Drive
You can add network folders on the USB storage device.
To add a network folder:
1. Launch a web browser from a computer or wireless device that is connected to the
network.
2. Type http://routerlogin.net or http://192.168.0.1.
A login screen displays.
3. Enter the modem router user name and password.
The user name is admin. The default password is password. The user name and
password are case-sensitive.
The BASIC Home screen displays.
4. Select ADVANCED > ReadySHARE.
5. Click the Edit button.
6. Click the Create Network Folder button.
If this screen does not display, your web browser might be blocking pop-ups. If it is,
change the browser settings to allow pop-ups.
7. In the USB Device list, select the USB drive.
8. Click the Browse button and in the Folder field, select the folder.
9. In the Share Name field, type the name of the share.
10. In the Read Access list and the Write Access list, select the settings that you want.
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The user name (account name) for All – no password is guest. The password for admin is
the same one that is used to log in to the modem router. By default, it is password.
11. Click the Apply button.
The folder is added on the USB device.
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Safely Remove a USB Drive
Before you physically disconnect a USB drive from the modem router USB port, log in to the
modem router and take the drive offline.
To remove a USB disk drive safely:
1. Launch a web browser from a computer or wireless device that is connected to the
network.
2. Type http://routerlogin.net or http://192.168.0.1.
A login screen displays.
3. Enter the modem router user name and password.
The user name is admin. The default password is password. The user name and
password are case-sensitive.
The BASIC Home screen displays.
4. Select USB Storage > Basic Settings.
5. Click the Safely Remove USB Device button.
This takes the drive offline.
6. Physically disconnect the USB drive.
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View or Change the WAN Settings
You can view the wide area network (WAN) settings for the Internet port. You can set up a
DMZ (demilitarized zone) server, change the maximum transmit unit (MTU) size, and enable
the modem router to respond to a ping to its WAN (Internet) port.
To view or change the WAN settings:
1. Launch a web browser from a computer or wireless device that is connected to the
network.
2. Type http://routerlogin.net or http://192.168.0.1.
A login screen displays.
3. Enter the modem router user name and password.
The user name is admin. The default password is password. The user name and
password are case-sensitive.
The BASIC Home screen displays.
4. Select ADVANCED > Setup > WAN Setup.
5. View or change the following settings:
• Disable IPv4 Firewall Protection. The IPv4 firewall is enabled by default, which is
the recommended setting. Some advanced users might want to disable IPv4 firewall
protection to examine the traffic coming in from the Internet.
• Disable Port Scan and DoS Protection. DoS protection protects your LAN against
denial of service attacks such as Syn flood, Smurf Attack, Ping of Death, and many
others. Select this check box only in special circumstances.
• Default DMZ Server. This feature is sometimes helpful when you are playing online
games or videoconferencing, but it makes the firewall security less effective. See Set
Up a Default DMZ Server on page 48.
• Respond to Ping on Internet Port. This feature allows your modem router to be
discovered. Use this feature only as a diagnostic tool or if you have a specific reason.
• MTU Size (in bytes). The normal MTU (maximum transmit unit) value for most
Ethernet networks is 1500 bytes, or 1492 bytes for PPPoE connections. Change the
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Specify Network Settings User Manual47
A login screen displays.
3. Enter the modem router user name and password.
The user name is admin. The default password is password. The user name and
password are case-sensitive.
The BASIC Home screen displays.
4. Select ADVANCED > Setup > WAN Setup.
5. In the MTU Size field, enter a value from 64 to 1500.
6. Click the Apply button.
Your change is saved.
If you suspect an MTU problem, a common solution is to change the MTU to 1400. If you are
willing to experiment, you can gradually reduce the MTU from the maximum value of 1500
until the problem goes away. The following table describes common MTU sizes and
applications.
Table 2. Common MTU sizes
MTU Application
1500 The largest Ethernet packet size. This setting is typical for connections that do not use
PPPoE or VPN, and is the default value for NETGEAR modem routers, adapters, and
switches.
1492 Used in PPPoE environments.
1472 Maximum size to use for pinging. (Larger packets are fragmented.)
1468 Used in some DHCP environments.
1460 Usable by AOL if you do not have large email attachments, for example.
1436 Used in PPTP environments or with VPN.
1400 Maximum size for AOL DSL.
576 Typical value to connect to dial-up ISPs.
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Specify Network Settings User Manual48
Set Up a Default DMZ Server
The default DMZ server feature is helpful when you are using some online games and
videoconferencing applications that are incompatible with Network Address Translation
(NAT). The modem router is programmed to recognize some of these applications and to
work correctly with them, but other applications might not function well. In some cases, one
local computer can run the application correctly if the IP address for that computer is entered
as the default DMZ server.
WARNING:
DMZ servers pose a security risk. A computer designated as the
default DMZ server loses much of the protection of the firewall and
is exposed to exploits from the Internet. If compromised, the DMZ
server computer can be used to attack other computers on your
network.
The modem router usually detects and discards incoming traffic from the Internet that is not a
response to one of your local computers or a service that you have configured in the Port
Forwarding/Port Triggering screen. Instead of discarding this traffic, you can have the modem
router forward the traffic to one computer on your network. This computer is called the default
DMZ server.
To set up a default DMZ server:
1. Launch a web browser from a computer or wireless device that is connected to the
network.
2. http://192.168.0.1Type http://routerlogin.net or .
A login screen displays.
3. Enter the modem router user name and password.
The user name is admin. The default password is password. The user name and
password are case-sensitive.
The BASIC Home screen displays.
4. Select ADVANCED > Setup > WAN Setup.
5. Select the Default DMZ Server check box.
6. Type the IP address.
7. Click the Apply button.
Your change takes effect.
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Specify Network Settings User Manual49
Change the Modem Router’s Device Name
The modem router’s device name is C3700. This device name displays in file manager when
you browse your network.
To change the modem router’s device name:
1. Launch a web browser from a computer or wireless device that is connected to the
network.
2. Type http://routerlogin.net or http://192.168.0.1.
A login screen displays.
3. Enter the modem router user name and password.
The user name is admin. The default password is password. The user name and
password are case-sensitive.
The BASIC Home screen displays.
4. Select ADVANCED > Setup > LAN Setup.
5. In the Device Name field, type a new name.
6. Click the Apply button.
Your change is saved.
Change the LAN TCP/IP Settings
The modem router is preconfigured to use private IP addresses on the LAN side and to act
as a DHCP server. The modem router’s default LAN IP configuration is as follows:
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Specify Network Settings User Manual51
If you changed the LAN IP address of the modem router, you are disconnected when this
change takes effect.
To reconnect, close your browser, relaunch it, and log in to the modem router.
Specify the IP Addresses That the Modem
Router Assigns
By default, the modem router acts as a Dynamic Host Configuration Protocol (DHCP) server.
The modem router assigns IP, DNS server, and default gateway addresses to all computers
connected to the LAN. The assigned default gateway address is the LAN address of the
modem router.
These addresses must be part of the same IP address subnet as the modem router’s LAN IP
address. Using the default addressing scheme, define a range between 192.168.0.2 and
192.168.0.254, although you can save part of the range for devices with fixed addresses.
To specify the pool of IP addresses that the modem router assigns:
1. Launch a web browser from a computer or wireless device that is connected to the
network.
2. Type http://routerlogin.net or http://192.168.0.1.
A login screen displays.
3. Enter the modem router user name and password.
The user name is admin. The default password is password. The user name and
password are case-sensitive.
The BASIC Home screen displays.
Produkt Specifikationer
| Mærke: | Netgear |
| Kategori: | Router |
| Model: | C3700 |
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