RUTX12 connecting to Starlink Dish by POE Adapter

Hi, i connect the starlink dish to the wan port from the rutx12 (in my camper, using 12V) by using a poe adapter. the wan port gets a ip adress, first 192.100.x.x. and then it changes to 10.x.x.x like it is subsribt in some tutorials. the problem is, i hav no connection to the internet. i think it is a routing or firewall issu. unfortunatli i can not upload my config.
does anyone have any ideas?
(with the starlink router it works, but i want to use it with 12V in the Camper)
best regards markus