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Forum Discussion
NOTICE: CM3000 cable modem v6.01.04 Firmware Released
Getting some reports that this version of FW is being seen on CM3000 series modems from CC/XF ISP. Not sure if other ISPs will be seeing this. Maybe at some point.
This seems to follow up on last years v.03 FW that was a bust and was pulled from use by the ISP and NG which resulted in users modems being downgraded back to prior v5 working FW.
Anyone seeing this, please give feedback on your experiences seen with this version loaded on the CM3000 modem.
Hopefully good results.
11 Replies
Sometime around 11/18/2025 Cox Communications upgraded my CM3000 to the v6.01.04 firmware. It has been unusable ever since. When connected up to a router, the internet connection is never completed. I've tried both an MR80 mesh router and an older R7000P. Luckily, I still have my CM1200 modem, which works just fine with either router.
This CM3000 is still under warranty, since I purchased it in August of this year (2025). Netgear support seems to be giving me the runaround: having me reboot, reset, reset, etc. They've never admitted to an issue with this modem.
Any suggestions as to how I can better get their attention and resolve this?
Had the CM3000 been fully associated with the ISP and then after that after connecting a router to the CM3000 modem, power OFF The modem for 30 seconds then back ON, then give about 1 minute power ON the external wifi router?
Yes, the modem worked just fine from 08/18/2025 to 11/16/2025. And I have run through the reboot/reset process several times with the Cox representative on the phone with me. I also have an outstanding case with Netgear, and they just keep telling me to do the same thing.
As an aside, I'm retired after 40+ years working in the IT industry, so I'm pretty familiar with how this works.
Power OFF and back ON differs from reboot and reset.
You will need to put the CM3000 series back online and get it associated with the ISP. Have one ethernet connected PC connected to the modem. Not a router and see if you can get internet access.
Then capture the CM3000s cable connection and event logs from the modem and post here.
So far your the only one posting about this version of FW since NG released it.
I have performed the modem reset, and connected the modem LAN port directly to a computer via an ethernet cable. The DHCP server at Cox gives me an IP address, but I cannot connect to the internet.
I have already sent Netgear the diagnostics they requested, as a result of being able to connect to the modem at 192.168.100.1
