Yes,I have Telekom FTTH and the solution I posted worked for me. Just connect the archer with your Telekom modem ( I guess you also have a modem from Telekom then?). and configure your router as...

I don't know if you still have this problem but for me, with the VR900v it helped to set the operating mode to WLAN-Router. Open Advanced > Operating mode and select the third option. (Erweitert >...

Were you able to set this up? I'm currently facing the same issue. To me it looks like the configuration is correct (vlan id 7 etc) but the router cannot connect. I also want to get rid of my old...