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Forum Discussion
Spraragen88
Aug 24, 2025Aspirant
Now Spectrum has updated the CM3000 to version 6.01.03 - they refuse to roll it back
This darn broken firmware has made its way to Spectrum. They refuse to believe the only solution is to rollback to 5.0.X as proven method by Xfinity and other ISPs who dealt with this mess months ago...
KristopherK2024
Jul 31, 2025Aspirant
Hello:
Thought I would add to the issue regarding Cox Cable.
Have had same issue since Cox updated the CM3000 to version 6.01.03, likely in May. Have had 4 Cox service calls and last one finally advised either modem itself or bad firmware. He did advise he doubted Cox had ability to do firmware rollback, as had never heard of that happening. He advised if I got a new CM3000, unless the problem version had been suspended by Cox, the new modem would likely get immediately updated as part of the provisioning process. His only recommendation was to wait till next firmware update and see if fixed issues.
That is DOA; so likely giving it another week or so to see if Cox Cable initiates a rollback or will just buy Arris S34 and be done with this nonsense.
Find it hard to believe the firmware issue made it past both NETGEAR and Cox. Have usually had good luck with NETGEAR as also have Orbi 972 and it has been great.
Thanks
Kris
FURRYe38
Jul 31, 2025Guru - Experienced User
Can you give details on what issues you have been seeing with v6 FW loaded on your CM3000?
- KristopherK2024Aug 01, 2025Aspirant
GUI unresponsive.
Upstream light refuses to lock. Modem shows poor connection status. OFDMA channels refuse to lock.
If power cycle, sometimes all lights will lock. Modem shows good connection and shows 2 OFDMA channels are locked. However, only lasts 20-40 minutes before internet connectivity fails, even though all lights show fine. Have to power cycle to try and get connectivity back.
If power cycle several times, can get somewhat stable connectivity, but upstream light refuses to lock and OFDMA not locked and modem shows poor connection, but will hold that status for several days. Upstream/downstream speeds highly erratic.