I got it working, I just changed the DNS Servers to the Gateway IP of Router 1 in the ASUS Settings and the DNS of the Client to the Gateway IP of Router 2 (ASUS). And plugged re-plugged, deleted the Client Wired Profile multiple times till it was working.
Sorry to bother you, guy. I should've...
Hey Guys,
this ist my very first post in this great forum. I learned so much in the past years reading here. Nevertheless I feel still very new so I never felt to contribute something others couldn't do better anyways.
Now I'm completley stuck with this problem to which I can't find any...