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NETGEAR Nighthawk CM2500

NETGEAR Nighthawk CM2500
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User Manual
Nighthawk® CM2500 Cable Modem
Model CM2500
NETGEAR, Inc.
350 E. Plumeria DriveJanuary 2022
San Jose, CA 95134, USA202-xxxxx-01
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NETGEAR Nighthawk CM2500 Specifications

General IconGeneral
TypeCable Modem
DOCSIS StandardDOCSIS 3.1
Backward CompatibilityDOCSIS 3.0
CompatibilityCompatible with major cable internet providers
Channel Bonding32 downstream x 8 upstream (DOCSIS 3.0), 2 OFDM downstream x 2 OFDMA upstream (DOCSIS 3.1)
Operating Temperature0°C to 40°C (32°F to 104°F)
Ethernet Ports2 x 2.5 Gigabit Ethernet

Summary

Hardware Setup

Front Panel and LEDs

Describes the status LEDs on the front panel of the cable modem and their meanings.

Rear Panel

Details the connections and buttons located on the rear panel of the cable modem.

Label

Shows the location of the cable modem label containing login information, MAC, and serial numbers.

System Requirements

Lists the necessary operating systems, web browsers, and internet service for installation.

Install and Activate Your Cable Modem

Provides step-by-step instructions for installing and activating the cable modem with your ISP.

Perform a Speed Test

Guides users on how to test their internet speed after activation to verify performance.

Manage Your Network

Log in to the cable modem

Explains how to access the cable modem's web interface using a browser.

Change the admin password

Details the process for changing the default administrator password for enhanced security.

View cable modem initialization

Describes how to track the cable modem's initialization and provisioning status.

View cable modem status

Guides users on how to check the current status and usage information of the cable modem.

View and clear event logs

Explains how to view important events recorded by the cable modem and clear the log entries.

Specify the cable connection starting frequency

Instructs on how to set a specific cable connection starting frequency if required by the ISP.

Ethernet Port Aggregation

Introduces Ethernet port aggregation for improving transfer speeds using multiple LAN ports.

Set Up Ethernet Port Aggregation

Provides instructions on configuring the cable modem and connected devices for Ethernet port aggregation.

View the Ethernet Port Aggregation Status

Explains how to check the current status of Ethernet port aggregation on the cable modem.

Change the Ethernet Port Aggregation Configuration Mode

Details how to enable or disable Ethernet port aggregation modes on the cable modem.

Reboot the cable modem

Describes the procedure for restarting the cable modem to refresh network connections.

Reset the cable modem to factory default settings

Explains how to restore the cable modem to its original factory default settings.

Troubleshooting

Use LEDs to Troubleshoot

Provides guidance on troubleshooting issues by interpreting the status LEDs on the cable modem.

Cannot log in to the cable modem

Offers solutions for common problems encountered when trying to log into the cable modem interface.

Troubleshoot the cable internet connection

Guides users through diagnosing and resolving issues with the cable internet connection.

Supplemental Information

Factory Settings

Lists the default settings for the cable modem as configured at the factory.

Technical Specifications

Provides detailed technical specifications of the cable modem, including power, dimensions, and interface details.

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