Thx for the input. The router is up to date and I have no problems besides the daily manual reconnect. It works then for the rest of the day.
I also didn’t change anything in my setup and it worked flawlessly for months before the update to roon 416. For me it’s very likely that there was a change in timeouts.
I changed my setup not to restart the router every night. I’m sure this will also „solve“ the problem, as there is then no more reason to reconnect…
BRS