I get disconnected only at Nordschleife

Hey guys,
does anyone know, why i get diconnected some times on Nordschleife.
The players disapear, the camera switches to hoodcam and then a few secounds later i´m kicked to the multiplayer overview.

Do I have an up2date driver? -> yes
Did I reinstall the game? -> yes
Do I have any other disconnects? -> no
Maybe someone knows hiw to solve it.

 

Are you a customer of Telekom Deutschland?
Do you use a Telekom Roouter (like Speedport 9xx or 7xx)?

 

Hello keanos,
no i´m with O2 and a homebox.

 

I solved it with a nonbranded Fritzbox instead of the Telekom Router.