Related Manuals for NETGEAR Nighthawk CM3000
Summary of Contents for NETGEAR Nighthawk CM3000
- Page 1 User Manual Nighthawk® 2.5Gbps Cable Modem Model CM3000 NETGEAR, Inc. January 2022 350 E. Plumeria Drive 202-xxxxx-01 San Jose, CA 95134, USA...
- Page 2 NETGEAR support resources. Contact your Internet service provider for technical support. Trademarks ©NETGEAR, Inc. NETGEAR and the NETGEAR Logo are trademarks of NETGEAR, Inc. Any non-NETGEAR trademarks are used for reference purposes only. Compliance and Conformity For regulatory compliance information, visit https://www.netgear.com/about/regulatory/.
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Page 3: Table Of Contents
Contents Chapter 1 Hardware Setup Front Panel and LEDs................5 Rear Panel....................6 Label.......................8 System Requirements................8 Install and Activate Your Cable Modem..........9 Connect Your Cable Modem to a Computer.......9 Activate Your Internet Service............11 Perform a Speed Test..............12 Chapter 2 Manage Your Network Log in to the cable modem...............14 Change the admin password............14 View cable modem initialization............15... -
Page 4: Chapter 1 Hardware Setup
This chapter covers the following topics: • 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. -
Page 5: Front Panel And Leds
Nighthawk CM3000 2.5 Gbps Cable Modem Front Panel and LEDs The cable modem provides status LEDs on the front. Figure 1. Front panel You can use the LEDs to verify status and connections. The following table lists and describes each LED on the cable modem. - Page 6 Nighthawk CM3000 2.5 Gbps Cable Modem Table 1. LED descriptions Icon Description Power • Solid white. 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.
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Page 7: Rear Panel
Nighthawk CM3000 2.5 Gbps Cable Modem Rear Panel The connections and button on the rear panel are shown in the following figure. Figure 2. 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 white and the cable modem returns to its factory settings. -
Page 8: Label
Nighthawk CM3000 2.5 Gbps Cable Modem device to your cable modem. Use two Ethernet cables to connect these ports to the aggregated ports on a target network device. • Coaxial cable port. Connect the cable port to a cable wall outlet. -
Page 9: Install And Activate Your Cable Modem
Nighthawk CM3000 2.5 Gbps Cable Modem • 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... - Page 10 Nighthawk CM3000 2.5 Gbps Cable Modem If you must share the connection, use a 3.5dB (1 to 2) splitter. 3. Connect the power adapter to the cable modem and plug the power adapter into an electrical outlet. The cable modem might reset multiple times when it is powered on.
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Page 11: Activate Your Internet Service
Nighthawk CM3000 2.5 Gbps Cable Modem port aggregation. For more information, see Ethernet Port Aggregation on page c. Power on the router. d. Connect your computer or mobile device to the router. 6. Reboot the computer. Activate Your Internet Service Before you activate your Internet service, gather the following information: •... -
Page 12: Perform A Speed Test
Nighthawk CM3000 2.5 Gbps Cable Modem Table 2. Cable Internet provider contact information (Continued) Cable Contact Information Internet Provider Spectrum https://activate.spectrum.net/ 1-833-267-6094 Xfinity Download the Xfinity app via the App Store or Google Play. https://xfinity.com/support/articles/activate-internet-gateway-modem https://www.xfinity.com/support/internet Note: Your cable Internet provider’s contact information might change. You can find the contact information in your monthly Internet service billing statement. -
Page 13: Chapter 2 Manage Your Network
Manage Your Network 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. This chapter includes the following sections: •... -
Page 14: Log In To The Cable Modem
Nighthawk CM3000 2.5 Gbps 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: •... -
Page 15: View Cable Modem Initialization
Nighthawk CM3000 2.5 Gbps Cable Modem 4. Select ADVANCED > Administration > Set Password. The Set Password page displays. 5. Type the old password, and type the new password twice. 6. Click the Apply button. 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. -
Page 16: View Cable Modem Status
Nighthawk CM3000 2.5 Gbps Cable Modem View cable modem status To view cable modem status and usage information: 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. -
Page 17: Specify The Cable Connection Starting Frequency
Nighthawk CM3000 2.5 Gbps Cable Modem 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 must enter a starting frequency, contact your Internet provider. -
Page 18: Set Up Ethernet Port Aggregation
Nighthawk CM3000 2.5 Gbps Cable Modem To set up Ethernet port aggregation with your cable modem, you need the following: • A service provider that offers an Internet speed that's over 1 Gbps. • A router or computer that supports the following: 802.3ad LACP... -
Page 19: Change The Ethernet Port Aggregation Configuration Mode
Nighthawk CM3000 2.5 Gbps Cable Modem Change the Ethernet Port Aggregation Configuration Mode To change your cable modem's Ethernet port aggregation configuration mode: 1. Launch a web browser from a computer that is connected to your cable modem. 2. Enter http://192.168.100.1. -
Page 20: Reset The Cable Modem To Factory Default Settings
Nighthawk CM3000 2.5 Gbps Cable Modem 3. Enter the admin user name and password. The user name is admin. The default password is printed on the product label. The user name and password are case-sensitive. The BASIC Home page displays. -
Page 21: Use The Reset Button On The Back Panel
Nighthawk CM3000 2.5 Gbps 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. -
Page 22: Chapter 3 Troubleshooting
Troubleshooting This chapter provides information about troubleshooting your cable modem. The chapter includes the following sections: • Use LEDs to Troubleshoot • Cannot log in to the cable modem • Troubleshoot the cable internet connection... -
Page 23: Use Leds To Troubleshoot
Nighthawk CM3000 2.5 Gbps Cable Modem Use LEDs to Troubleshoot The following table provides help when you are using the LEDs for troubleshooting. Troubleshooting User Manual... - Page 24 Nighthawk CM3000 2.5 Gbps Cable Modem Table 3. Troubleshooting with LEDs LED Behavior Action All LEDs are off when the cable modem is plugged in. • Make sure that the power cord is properly connected to your cable modem and that the power supply adapter is properly connected to a functioning power outlet.
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Page 25: Cannot Log In To The Cable Modem
Nighthawk CM3000 2.5 Gbps Cable Modem Cannot log in to the cable modem If you cannot access your cable modem from a computer that is connected to your cable modem or to a router that is connected your cable modem, check the following: •... -
Page 26: Chapter 4 Supplemental Information
Supplemental Information This appendix covers the following topics: • Factory Settings • Technical Specifications... -
Page 27: Factory Settings
Nighthawk CM3000 2.5 Gbps Cable Modem Factory Settings The following table shows the factory default settings for the cable modem. Table 4. Factory default settings Feature Default Setting Cable modem login User login URL http://192.168.100.1 User name (case-sensitive) admin Login password (case-sensitive) - Page 28 Nighthawk CM3000 2.5 Gbps Cable Modem Table 5. Technical specifications Feature Specification Power adapter • Input: 110–120V, 47–60 Hz • Output: 12 VDC, 1.5 A Physical specifications • Dimensions: (W X D X H) 6.8 x 3.7 x 8.2 in. (172 x 94 x 208 mm) •...