Internet to Router, no Internet or webgui access on lan

[Salad]

Hello, not sure if im doing this here correclty but im getting frustrated and cant find anything similar to my Problem. I installed OPNsense on a thinclient, turned on Bridge Mode on my Vodafone-Station and assigned one port as wan and the NIC ports as lan and opt1. Now, yesterday i had the same issue, but it just resolved itself when i kept switching the lan and wan and all of a sudden everything worked. Today i foolishly decided to clean up the setup and move everything nicely to a corner, shutdown via the power button, the jingle played and everything seemed fine, put everything in a corner, all cables are plugged into the same ports as before and now i dont have Internet access on my PC nor webgui access.

Yesterday when it worked, i also rebooted it a bunch of times and it still worked, but for some reason today is different.
Im getting so frustrated and need some help with this

Also english isnt my native tongue so im sorry if some things i wrote oddly.