Try plugging directly to the AT&T modem first. See if that works.
If it does, you'll have to turn off the dhcp sever in the AT&T router. if you want to use your own.
Try plugging directly to the AT&T modem first. See if that works.
If it does, you'll have to turn off the dhcp sever in the AT&T router. if you want to use your own.
That sounds like a lot of work lol.
One router is all that's needed. You need a reverse proxy like, nginx. Go over to r/selfhosted and there are guides to help.