it could be an effect of the xbox trying upnp. Which is something that needs to be refined everywhere including all manufactured routers. At least with this system you see any error that occurs.
The IP is being automatically picked up through DHCP via IPFire. I have IPFireās DHCP configured with fixed lease IPās for each node of .2, .3, and .4. (These are outside the DHCP serverās range for dynamic leases). It was set up this way before the factory reset as well. I know that each node is getting the .2, .3, and .4 since when I point to those addresses with a web browser, they are automatically redirecting me to .2 (the main node). They also show up with those IP addresses in the Linksys app.
Youāll note in the screenshot above, that it even pulled the domain name (redel) from IP Fireās DHCP. There is no way to set it up in Bridge Mode and bypass the DHCP client without updating to a custom firmware, AFAIK. It is, however, not running a DHCP server and wireless clients are getting their correct IPās from IPFire (as they were before the reset).