1.7.1 and Unity 4.1.5 lockups on exit?

[Rogdor]

I just upgraded to Unity 4.1.5 (current) and TNet 1.7.1 and I'm experiencing lockups in the Unity editor after play, whenever a TNetServerInstance is used. If I start an external server it's fine, but when launching the server from inside the game, after play the entire Unity editor is locked up. The same occurs with a build, where the game itself will lock up on attempts to close / end it.

Just using TNet with the default examples (Example Menu, etc.) right now, nothing fancy or custom.

[Rogdor]

Additional info: It seems this only occurs when the server fails to open UPnP ports correctly. I realize that the UPnP failure is a router problem (my WD N750 router is finicky with UPnP, but I open ports manually to compensate), but a graceful exit by TNet would certainly be preferable.

Also, I'm not certain if this is specific to TNet 1.7.1 + Unity 4.1.5 or not, since I'm new to both. The problem may have existed previously.