Cable Modems & Gateways

Discuss Cable (C and CM series) modems and gateway products.

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Discussions

CM1100 and Mesh 6 system not working after power failure; all lights working fine
Greetings! - CM1100 modem and MR60 mesh router (2 satellites) installed June of 2021. Comcast is my ISP in the PNW and is relatively reliable historically. - Over last 4 years, I've had to p...
Solved
CarrieF
Dec 15, 2025 Place Cable Modems & Gateways
cm1100
91Views
0likes
18Comments
Every month I have to reconfigure the CAX80
Mine is different; every month, the CAX80 internet connection must stop, and then will require a password change. I have been having the same problem for 4 months. Every month I have to reconfigure ...
Venky1
Dec 14, 2025 Place Cable Modems & Gateways
cax80
21Views
0likes
1Comment
C7100V – Nighthawk AC1900 WiFi Cable Modem Router With Battery PB022
Yes it's been 5 years, but I wonder what version of firmware you were using with this modem? I purchased a used C7100V and it had V2.01.45 firmware. Maybe this was a bug that was addressed by the...
audio_inside
Dec 14, 2025 Place Cable Modems & Gateways
not listed
21Views
0likes
1Comment
CAX80 v5.1.1.8 Firewall Blocking HTTPS API Traffic - DMZ Confirmed
Hi all, I'm experiencing a firewall bug on my CAX80 (firmware v5.1.1.8) that's blocking HTTPS API calls to legitimate services (specifically api.anthropic.com for Claude AI/Claude Code). Symp...
Solved
brief-actuator
Dec 14, 2025 Place Cable Modems & Gateways
cax80
56Views
1like
10Comments
Reliable cm1200 suddenly dropping on Comcast
I bought this modem a few years ago and it's been rock solid until the past week. I started noticing waiting icons as the internet seemed to have issues. In the early morning hours I get notices that...
sam452
Dec 13, 2025 Place Cable Modems & Gateways
cm1200
42Views
1like
5Comments
CM1200 suddenly dropping on Comcast
I am suddenly having the same issue. Have to turn the modem off, wait a minute then turn back on. It's good for a bit, then it happens again. Times are totally random that it goes down. All lights sh...
Off2Geo
Dec 13, 2025 Place Cable Modems & Gateways
cm1200
55Views
0likes
13Comments
CM1100 LED Internet Infinity burnt out!
This is so annoying these LED's should never burn out. The modem is working with full internet support but the LED is not green. It is burnt out. I restarted the modem and rebooted it that light d...
Bob5545
Dec 12, 2025 Place Cable Modems & Gateways
cm1100
35Views
0likes
3Comments
NOTICE: New - CBR750 Firmware Version 4.6.14.8 Released
Get it here: New - CBR750 Firmware Version 4.6.14.8 Released | NETGEAR Communities Be sure to keep any and all RBS750 series satellites at the same v4 version level. RBS750 v7 FW is NOT compa...
FURRYe38
Dec 10, 2025 Place Cable Modems & Gateways
cbk752
cbr750
9Views
0likes
0Comments
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 la...
FURRYe38
Dec 09, 2025 Place Cable Modems & Gateways
cm3000
186Views
0likes
11Comments
I have a Linksys Mesh and am looking at getting a CAX80
I have a Linksys Mesh and am looking at getting a CAX80. What does running the mesh system in "access point mode" mean - to a non -techie. Thanks,
HoundDogMama
Dec 06, 2025 Place Cable Modems & Gateways
cax80
63Views
0likes
2Comments