NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.

Knowledge Base Article

General info and Troubleshooting for Cable Modems

Information regarding Cable Modem support and troubleshooting:

 

  • Where to find latest FW update info?

https://kb.netgear.com/000036375/What-s-the-latest-firmware-version-of-my-NETGEAR-cable-modem-or-modem-router

 

  • How Cable Modem FW upgrade?

https://kb.netgear.com/24938/How-do-I-connect-my-NETGEAR-Cable-Modem-Router

NOTE: For CAX series gateways only. All other models have to be updated by an ISP.

 

  • How to capture modem event logs and Connection/power table info?

https://kb.netgear.com/30007/How-do-I-obtain-the-cable-connection-information-from-a-NETGEAR-cable-modem-modem-router
https://kb.netgear.com/30008/How-do-I-view-or-clear-the-event-logs-on-my-NETGEAR-cable-modem-or-modem-router

Please post this information in a forum post for further review. 

 

  • Check ISP signal power levels on the modem...

https://kb.netgear.com/24311/Power-level-guidelines-for-a-NETGEAR-cable-modem-router

 

  • How to debug provisioning/speed issue?

1. Have the ISP check the signal and line quality UP to the modem. Be sure the ISP provisions the modem correctly.
2. Be sure there are no coax cable line splitters in the between the modem and ISP service box. 
3. Be sure your using good quality RG6 coax cable up to the modem. 
4. Start with removing any amplifiers, signal attenuators, or splitters from the coax. From there check the line for kinks, damage, moisture in the line.
5. Check the connectors for improperly made ends, foil touching the copper coax line, loose connections, bad/old/cheap connectors, or corroded connections. Replace them if you do.
6. Be sure to power OFF the modem for 1 minute then back ON.

 

  • Improving 2.4G wifi performance:

http://kb.netgear.com/23783/Improving-2-4Ghz-Wireless-Performance-by-Changing-Channel

 

  • How do I reset my cable modem to factory default settings?

https://kb.netgear.com/000036374/How-do-I-reset-my-cable-modem-to-factory-default-settings

 

  • Good KB on Multi-Gig ISP and Router support information for models that support MG features:

https://kb.netgear.com/000064991/What-options-do-I-have-when-setting-up-a-multi-gig-connection

 

User Manual for specific products:

http://www.netgear.com/support/

 

Product FAQ page:

Go to the specific product on the support page to get the FAQ.