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NETGEAR Nighthawk CM3000 User Manual

NETGEAR Nighthawk CM3000
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User Manual
Nighthawk® 2.5Gbps Cable Modem
Model CM3000
NETGEAR, Inc.
350 E. Plumeria DriveJanuary 2022
San Jose, CA 95134, USA202-xxxxx-01
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NETGEAR Nighthawk CM3000 Specifications

General IconGeneral
TypeCable Modem
DOCSIS StandardDOCSIS 3.1
Max Download SpeedUp to 2.5 Gbps
Max Upload Speed1 Gbps
CableLabs CertificationYes
DOCSIS Channels32x8
CompatibilityCompatible with major cable providers
Operating Temperature32°F to 104°F (0°C to 40°C)

Summary

Hardware Setup

Front Panel and LEDs

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

Rear Panel

Details the ports and buttons located on the rear panel of the cable modem for connectivity.

Label

Describes the label on the cable modem containing login information, MAC address, and serial number.

System Requirements

Lists the necessary operating systems and web browsers for installing and using the cable modem.

Install and Activate Your Cable Modem

Guides users through the physical connection and activation of the cable modem with their Internet Service Provider.

Manage Your Network

Log in to the Cable Modem

Provides step-by-step instructions on how to access the cable modem's web interface for management.

Change the Admin Password

Explains how to modify the default administrator password for enhanced security of the cable modem.

View Cable Modem Initialization

Shows how to track the modem's connection and initialization status with the network.

View Cable Modem Status

Details how to check the overall status and usage information of the cable modem.

View and Clear Event Logs

Guides users on accessing and clearing important event logs for troubleshooting modem issues.

Specify Cable Connection Starting Frequency

Explains how to set the cable connection starting frequency, typically for ISP-specific configurations.

Ethernet Port Aggregation

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

Set Up Ethernet Port Aggregation

Provides instructions on configuring Ethernet port aggregation with compatible routers or computers.

View Ethernet Port Aggregation Status

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

Change Ethernet Port Aggregation Configuration Mode

Details how to modify the configuration mode for Ethernet port aggregation on the cable modem.

Reboot the Cable Modem

Outlines the process for restarting the cable modem to resolve connectivity or performance issues.

Reset Cable Modem to Factory Default Settings

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

Troubleshooting

Use LEDs to Troubleshoot

Helps users diagnose modem issues by interpreting the status of the device's LED indicators.

Cannot Log In to the Cable Modem

Offers solutions and checks for users who are unable to access the cable modem's web interface.

Troubleshoot the Cable Internet Connection

Provides steps to diagnose and resolve problems with the cable internet connection.

Supplemental Information

Factory Settings

Lists the default settings of the cable modem as configured when shipped from the factory.

Technical Specifications

Provides detailed technical specifications of the cable modem hardware, interfaces, and certifications.

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