So, es hat lange gedauert, aber für alle die evtl. mal das gleiche Problem haben, hier die Lösung.
The source and destination IP address selection in Windows uses various parameters. One of them is the potential availability of an IP address.
A physical adapter on a modern standby enabled or AOAC client can stay connected while in standby and therefore has a 'higher' availability than a VPN if the physical adapter is seen as 'Always On Always Connected' (Aoac).
Due to which, WLAN takes higher preference and use its own IP for the resolving the computer name locally.
Bedeutet, auf dem WLAN Adapter WakeOnPattern abschalten. Danach nutzt die VPN Verbindung direkt den richtigen Weg.
