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Forum Discussion
drjtech
Oct 30, 2025Guide
Problem with port forwarding not working on my CAX80 connected to Xfinity.
I was having the same problem with port forwarding not working on my CAX80 connected to Xfinity. After double and triple checking for errors on my part I checked the web for a solution and found your...
jconradh
Nov 02, 2025Guide
I meant to say Comcast pushes the new Netgear firmware at 4 AM.
And no, I called and spent more than an hour on the phone with Comcast and as of right now, they won't stop pushing the 5x firmware.
I have tried using DHCP, and static IPs, I tried DMZ. The modem is out if it's warranty period, and I know for sure it's the 5x firmware. Runs fine on the 2.1.5.2 firmware.
This is on Netgear- they need to update the firmware to allow port forwarding and send it to Comcast.