Related Manuals for NETGEAR Nighthawk CM2500
Summary of Contents for NETGEAR Nighthawk CM2500
- Page 1 User Manual Nighthawk® CM2500 Cable Modem Model CM2500 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............10 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 CM2500 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: Rear Panel
Nighthawk CM2500 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. - Page 7 Nighthawk CM2500 Cable Modem 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.
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Page 8: Label
Nighthawk CM2500 Cable Modem Label The cable modem label shows the login information, MAC address, and serial number. Figure 3. Cable modem label System Requirements You need the following to install your cable modem: • Compatible operating system: Windows 10... -
Page 9: Install And Activate Your Cable Modem
Nighthawk CM2500 Cable Modem 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. Connect Your Cable Modem to a Computer After you install the cable modem and activate your Internet service, you can disconnect the computer and connect a router to the cable modem. -
Page 10: Activate Your Internet Service
Nighthawk CM2500 Cable Modem 4. Wait for the cable modem to come online. The cable modem comes online when the Internet LED stops blinking and lights solid white. This process might take up to 10 minutes. After 10 minutes, if the Online LED doesn’t light solid, make sure that the cable outlet is working or call your Internet service provider (ISP) to make sure you have service. - Page 11 Nighthawk CM2500 Cable Modem • Cable modem serial number, which is on the cable modem label . See Label on page 8 • Cable modem MAC address, which is on the cable modem label. See Label on page The following is contact information for cable Internet providers that support your cable modem.
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Page 12: Perform A Speed Test
Nighthawk CM2500 Cable Modem Perform a Speed Test To determine the accurate Internet speed, visit the speed test website of your cable Internet provider and perform a speed test. If your actual speed is lower than your subscribed speed, contact your cable Internet provider. -
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 CM2500 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. -
Page 15: View Cable Modem Initialization
Nighthawk CM2500 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 CM2500 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. 3. Enter the admin user name and password. -
Page 17: Specify The Cable Connection Starting Frequency
Nighthawk CM2500 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. To change the starting frequency: 1. -
Page 18: Set Up Ethernet Port Aggregation
Nighthawk CM2500 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 CM2500 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. A login window opens. -
Page 20: Reset The Cable Modem To Factory Default Settings
Nighthawk CM2500 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. 4. Click the ADVANCED tab. -
Page 21: Use The Reset Button On The Back Panel
Nighthawk CM2500 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. -
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 CM2500 Cable Modem Use LEDs to Troubleshoot The following table provides help when you are using the LEDs for troubleshooting. Troubleshooting User Manual... - Page 24 • Check that you are using the 12 VDC, 1.5A power adapter from NETGEAR for this product. • If the error persists, a hardware problem occurred. Contact Technical Support. All LEDs stay on.
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Page 25: Cannot Log In To The Cable Modem
Nighthawk CM2500 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 CM2500 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 CM2500 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) •...
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