This is the third time now with version 2.3.7 that I get the message Smart SDR lost connection to radio. When you click on OK to restart it does not see radio on network. Also volume will go full bore wide open. Have to reboot to get back to normal.
Steve - I'm running v2.2.8 right now and my 6400 disconnects every night, sometime after I have gone to bed. The computer is a dedicated NUC i5 based system running win7 Pro. Everything else works perfectly for me but the 6400 drops the link (or NUC) every night. I don't turn off the environment when not in use; the 6400 is a Radio Server and I think meant to be left on all the time. I have tried disableing the power saving modes around the network hardware but problem continues. Restarting SmartSDR and connecting to the radio and all is fine for the rest of the day. Not a big problem.
I also am having disconnects with 2.3.7. The radio (a 6700) then needs a long button press to force a shutdown. After the radio restarts, all is well again. This has happened twice. With 2.2.8, I did not have this problem. There have been no other changes in my system (3.7GHz i7-8700K, Windows 10 Pro). I am feeding spots from DXLab's Commander.
It just happened to me a second time in an hour. Earlier I was playing with power settings to see if sleep mode was feasible (it isn't). I have completely disabled sleep now. The disconnects were not in sleep mode.