CM1200 Failure

Are you getting front LED indications? Should be all GREEN

Please post a copy and paste of the modems connection status and event log page.
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

Be sure your using a good quality LAN cable between the modem and router. CAT6 is recommended. 
What is the brand and model of the host wifi router connected to the modem?

Be sure you understand that port 1 should be only used. The other ports are ISP WAN side assigned IP addresses from the ISP only. The CM modem is NOT a router.

Has a power off for 1 minute then back ON with the ISP modem and router been performed since last update?
Be sure to restart your network in this sequence:
Turn off and unplug modem.
Turn off router and computers.
Plug in and turn on modem. Wait 2 minutes for it to connect.
Turn on the router and wait 2 minutes for it to connect.
Turn on computers and rest of network.

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JimHerald wrote:
Greetings, it appears my CM1200 is failing and I have no idea how to approach this. I just bought it January 30th of this year. I did jot sign up for the “warranty” when I bought it. It has worked wonderfully up until the last week my internet does not work at all.

My ISP came out and checked several things, he found that the modem itself is not working. Roughly speaking it receives internet through coax , but none of the 4 ports on the back are functioning correctly. I have reset the thing several times and still nothing as gotten it working again.

Is it possible to do any kind of service or return through Netgear with it failing like this? I’ve only owned it for 5 months and paid a lot on Amazon for it, for the time being I bought a different modem but really hoping I can get this thing running again so I can return the one I bought. Thank you

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