I currently have two Venus installations (on Pi’s) and what I have found is that when both are online (on the same network) the WiFi Display app will keep getting disconnected from one, and often switches between the two….as if the mDNS is finding the other install than the one it is connected to and causing a disconnect….it then tries to connect to the other instance possibly?
With both on it keeps cycling, saying it can’t communicate after a couple of minutes working fine and reconnects, often to the other VenusOS instance.
If I turn one off the display works as expected and seems very stable.
Hope you can help, or maybe this will help you find a bug?
An excellent thought! Unfortunately the wifi app is finding it by IP (or at least displaying that), but even if I add by IP manually it still happens. I wonder if it is something to do with that and mDNS though….I may have to research this more
Ok I’m still testing but I think I have found the solution!
Whilst playing around I stopped the mDNS service on one of the devices and the looping stopped. When I started the service back up it produced an error that it couldn’t open ‘/data/venus/serial-number’. Makes sense….Raspberry Pi’s don’t have a serial number….but it made me think about how the Wifi display app shows ‘NONE’ in the serial column when showing the ones it has found…..and obviously both of these would have ‘NONE’…..and only one ever showed up!
So I created that file on both systems giving them unique numbers, restarted the service….both now show up in the scan and the looping has stopped!