@DanielWi Thank you, i tried establishing and IPSec as well with the same disappointing result. Even tried enabling the VPN-Connection from different ISPs (Homenetwork, Backup-Home-Network, Hotspot...

I do run into the same issue. My FritzBox Router is my Wireguard server and importing the config files in Windows and Android clients works just fine but the TP-Link Router won't load or process the...