Hi, I have used Acoustic Bridge for years and only ever had to fiddle with firewall stuff just to set it up.
I have moved to windows 11 and now have randomn drop outs.
It will work for hours or sometimes only minutes and suddenly just stop.
I setup a batch file to stop and restart the Service on the receiving PC and that will get it working for a randomn period of time.
net stop "Stardock Acoustic Bridge"
net start "Stardock Acoustic Bridge"
I did notice in dbgview when audio is being sent but it has stopped receiving I see these lines being spammed.

If I stop the sending audio the spam stops.
Today I removed Acoustic Bridge and installed Multiplicity instead. (trial)
It worked for about an hour before stopping.
Again I see exactly the same lines in dbgview.
The only benefit of multiplicity is that I can just uncheck and recheck "Enable audio sharing" and that seems to restart the audio.