Hi @noris and @anon47919701,
thanks for your hints. I tried to reboot multiple times no change. But I think I’m getting Closer to the issue. On a wired connection of the remote, everything works fine. On a WIFI Connection of the remote it doesn’t. For that test I’m using the same Windows10 PC.
I checked with AVM support. The Setting on WIFI “optimze for live TV” is in technical Terms “enable multicast”. It is turned on, but this is where the issue should be. I’m betting, that the update broke multicast over WIFI.
I’m on with the support of avm and will do some wireshark traces .
I will let you know.