Using latest stable 2.8.11. Remote is x32 win7sp1, host is win7sp1 x64.
How to reproduce:
1) Host runs "tvnviewer.exe -listen"
2) Remote runs "tvnserver.exe -controlapp -connect IP"
3) Host recieves immediate message "Connection has been gracefully closed" from tvnviewer
Log attached, nothing really helpful there: just calling onDisconnect
Suggestion: similar bug was fixed in 2.8.8 release - but, maybe, not in "reverse connections" of tvnviewer
Addition: a few days ago exactly same config worked fine. No updates, no nothing in meantime
More testing revealed: after remote is rebooted, and booted to login screen, host cannot connect with reverse connection: on remote screen appears popup "Incorrect login" for windows login screen - wtf?? If someone actually logs in on remote machine - than host can reverse-connect with no problem