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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...
UPnP is disabled from the start. I am forwarding port 32400 to my Plex server. Xfinity does not block the port with FW 2.1.5.2.
For troubleshooting FW 5.1.1.8 I tried forwarding several ports, including port 80. I tested the ports from https://www.yougetsignal.com/tools/open-ports/. Every port was closed.
Loading FW 2.1.5.2 with identical settings port 32400 is open and I can direct connect to my Plex server and yougetsignal shows any port I forward as open.
The only thing that is different between PF working and not working is FW 2.1.5.2 vs FW 5.1.1.8
The only thing that is different between PF working and not working is FW 2.1.5.2 vs FW 5.1.1.8
But it stops working after a while?
It stops working when Xfinity installs FW 5.1.1.8. It works continuously with no interruption as long as FW 2.1.5.2 is installed.
It stops working when Xfinity installs FW 5.1.1.8.
Got it. I found another report on that here (a year back).
Is the plex server being assigned an IP address within the DHCP pool range?
If not, you should try giving it a reserved address within the range.
- https://community.netgear.com/discussions/home-cable-modems-routers/re-new---cax80-firmware-version-5-1-1-8-released/2398956/replies/2400430
DHCP is disabled on the CAX80. My Domain Controller runs DNS and DHCP. I assign static IPS to my servers. Everything on the LAN is on the same 192.168.0.0/24 subnet.