Nighthawk Multi-Gig Speed Cable Modem User Manual Model CM1100 August 2018 202-11884-01 350 E.
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Contents Chapter 1 Hardware Setup Unpack Your Cable Modem....................................................................................5 Front Panel and LEDs............................................................................................6 Rear Panel.............................................................................................................8 Label......................................................................................................................
Hardware Setup 1 This chapter covers the following topics: • • • • • • Unpack Your Cable Modem Front Panel and LEDs Rear Panel Label System Requirements Install and Activate Your Cable Modem For more information about the topics covered in this manual, visit the support website at support.netgear.com. Note An uninterruptible power supply (UPS) can be purchased separately for continued service during power outages. For a list of supported UPS models, visit netgear.com/support/product/CM1100.
Nighthawk Multi-Gig Speed Cable Modem Unpack Your Cable Modem Your package contains the following items. Figure 1. Package contents 1. High Speed Cable Modem (Model CM1100) 2. Ethernet cable 3.
Nighthawk Multi-Gig Speed Cable Modem Front Panel and LEDs The cable modem provides status LEDs on the front. Figure 2. Front panel You can use the LEDs to verify status and connections. The following table lists and describes each LED on the cable modem.
Nighthawk Multi-Gig Speed Cable Modem Table 1. LED descriptions LED Icon Description Power • Solid green. Power is supplied to the cable modem. • Off. No power is supplied to the cable modem. • Solid red. The cable modem is too warm and might overheat. For more information about this condition, see Use LEDs to Troubleshoot on page 23. • Solid amber. One downstream channel is locked. • Solid green. Two or more downstream channels are locked. • Blinking green.
Nighthawk Multi-Gig Speed Cable Modem Table 1. LED descriptions (Continued) LED Icon Description LAN 1 • Green. A powered-on device is connected to the LAN port at 1000 Mbps. • Amber. A powered-on device is connected to the LAN port at 10 Mbps or 100 Mbps. • Off. No device is connected to the LAN port. • Blinking green or amber. The LAN port is processing traffic. • Green. A powered-on device is connected to the LAN port at 1000 Mbps. • Amber.
Nighthawk Multi-Gig Speed Cable Modem Figure 3. Rear panel Viewed from top to bottom, the back panel contains the following components: • Reset button. Pressing the Reset button resets the cable modem. If the Reset button is pressed for at least seven seconds, the Power LED blinks green and the cable modem returns to its factory settings. • LAN 1 and 2 ports. For installation and activation, connect a computer to the LAN 1 port.
Nighthawk Multi-Gig Speed Cable Modem • • - Mac OS - Other operating systems running a TCP/IP network Compatible web browser: - Microsoft Internet Explorer 5.0 or later - Firefox 2.0 or later - Safari 1.4 or later - Google Chrome 11.0 or later Cable broadband Internet service Install and Activate Your Cable Modem The cable modem provides a connection between your cable Internet provider’s network and your computer, router, or WiFi router.
Nighthawk Multi-Gig Speed Cable Modem 3. Connect the power adapter to the cable modem and plug the power adapter into an electrical outlet. When the startup is complete, the Power LED lights green. If the Power LED does not light, press the Power On/Off button. 4. Wait for the cable modem to come online. The cable modem comes online when the Internet LED stops blinking and lights solid green. This process might take up to 10 minutes. 5. Connect a computer to the cable modem.
Nighthawk Multi-Gig Speed Cable Modem Table 2. Cable Internet provider contact information Cable Internet Provider Contact Information CableOne http://www.cableone.net/ 1-877-MY-CABLE (1-877-692-2253) Cox https://cox.com/activate 1-800-234-3993 Mediacom https://maestro.mediacomcc.com/walledgarden/page/login.jsp 1-855-Mediacom (1-855-633-4226) Optimum https://install.optimum.com/JointInstall/ 1-877-810-6750 Xfinity https://xfinity.com/activate https://www.xfinity.
Nighthawk Multi-Gig Speed Cable Modem Figure 7. Connect the cable modem to a router To connect your cable modem to a router after installation and activation: 1. Reboot the cable modem by unplugging the power cable from the cable modem and plugging it back in. Wait for the Internet LED to stop blinking and light solid green. 2. Use an Ethernet cable to connect the Ethernet port on the cable modem to the WAN or Internet port on the router. 3. Power on the router. 4. Wait until the router is ready. 5.
Manage Your Network 2 After you set up the cable modem, you do not need to log in to the cable modem for normal operation. However, you can log in to the cable modem to change a very limited number of settings and monitor the cable modem.
Nighthawk Multi-Gig Speed Cable Modem Log In to the Cable Modem To log in to the cable modem: 1. Connect a computer to your cable modem. You can connect a computer to your cable modem using the following methods: • Connect a computer to your cable modem using an Ethernet connection. • Connect a WiFi router to your cable modem using an Ethernet connection, and then connect a computer to your router using a WiFi or Ethernet connection. 2. Launch a web browser. 3. Enter http://192.168.100.1.
Nighthawk Multi-Gig Speed Cable Modem Your settings are saved. View Cable Modem Initialization You can track the initialization procedure of the cable modem and get details about the downstream and upstream cable channel. The time is displayed after the cable modem is initialized. The cable modem automatically goes through the following steps in the provisioning process: 1. Scans and locks the downstream frequency and then ranges the upstream channels. 2. Obtains a WAN address for the cable modem. 3.
Nighthawk Multi-Gig Speed Cable Modem The ADVANCED Home page displays information about your cable modem. View and Clear Event Logs Event logs capture important cable modem events. To view and clear the event logs: 1. Launch a web browser from a computer that is connected to your cable modem. 2. Enter http://192.168.100.1. A login window opens. 3. Enter the admin user name and password. The user name is admin. The default password is password. The user name and password are case-sensitive.
Nighthawk Multi-Gig Speed Cable Modem 5. In the Starting Frequency field, type a number as instructed by your cable Internet provider. 6. Click the Apply button. Your settings are saved. Ethernet Port Aggregation Ethernet aggregation lets you use the LAN 1 and 2 ports on your cable modem to improve the aggregated transfer speed. Note that Ethernet port aggregation is also referred to as link aggregation, teaming port, and port trunking.
Nighthawk Multi-Gig Speed Cable Modem 3. Enter the admin 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 page displays. 4. Select ADVANCED > Advanced Setup > Ethernet Port Aggregation. The Ethernet Port Aggregation page displays the Ethernet port aggregation status on the page. Change the Ethernet Port Aggregation Configuration Mode To change your cable modem's Ethernet port aggregation configuration mode: 1.
Nighthawk Multi-Gig Speed Cable Modem The BASIC Home page displays. 4. Click the ADVANCED tab. The ADVANCED Home page displays. 5. Click the Reboot button. A confirmation message displays. 6. Click the OK button. The cable modem reboots. Reset the Cable Modem to Factory Default Settings To reset the cable modem to factory default settings, you can use either the Reset button on the back panel of the cable modem or the Factory reset software button.
Nighthawk Multi-Gig Speed Cable Modem Use the Reset Button on the Back Panel CAUTION: This process erases all settings that you configured in the cable modem. To reset the cable modem to factory default settings using the Reset button: 1. On the back of the cable modem, locate the Reset button. 2. Using a straightened paper clip, press and hold the Reset button until the cable modem reboots itself. The configuration is reset to factory default settings. This process takes about one minute.
Troubleshooting 3 This chapter provides information about troubleshooting your cable modem.
Nighthawk Multi-Gig Speed Cable Modem Use LEDs to Troubleshoot The following table provides help when you are using the LEDs for troubleshooting. Table 3. Troubleshooting with LEDs LED Behavior Action All LEDs are off when the cable modem is plugged in. • Make sure that the power adapter is securely connected to your cable modem and a functioning power outlet. • Check that you are using the 12 VDC, 2.5 A power adapter from NETGEAR for this product.
Nighthawk Multi-Gig Speed Cable Modem Table 3. Troubleshooting with LEDs (Continued) LED Behavior Action The Internet LED is off and the cable modem is connected to the cable wall jack. • The Power LED lights red. Make sure that the coaxial cable connections are secure at the cable modem and at the wall jack. • Make sure that your Internet service provider provisioned your cable Internet service. Your ISP can verify that the signal quality is good enough for cable modem service.
Nighthawk Multi-Gig Speed Cable Modem • When entering configuration settings, be sure to click the Apply button before moving to another page, or your changes are lost. • Click the Refresh or Reload button in the web browser. It is possible that the changes occurred, but the web browser is caching the old configuration.
Supplemental Information This appendix covers the following topics: • • Factory Settings Technical Specifications 26 4
Nighthawk Multi-Gig Speed Cable Modem Factory Settings The following table shows the factory default settings for the cable modem. Table 4. Factory default settings Feature Cable modem login Internet connection Default Setting User login URL http://192.168.100.
Nighthawk Multi-Gig Speed Cable Modem Table 5.
