Port Forwarding stopped working seemingly out of nowhere

Hi, today the ports I had forwarded for months just stopped working out of nowhere randomly, and no new ports will work even if I try to do it on another computer.

The ports I had open were:

-8123

-25565

-65342

-65343

I can still connect to those ports on the local network using the device IP, but I can't use the public IP.  I have an Xfinity XFI gateway, model number TG3482G.

Does anyone know how to fix this?