I am also having this issue with my Surface Pro 4 and I believe Teamviewer is possibly doing something it shouldn't be upon disconnection. Somehow one of my machines upgraded itself to 13. I was then forced to upgrade all in order to connect to/from the first machine that upgraded. So hopefully the "fix" isn't isolated only to some version 12 "insider build". 30 seconds after closing a remote session to my SP4, Teamviewer goes OFFLINE. The only way to stop it is to uncheck "turn off display" (while plugged in). It does not matter what the timeout is set to. It always goes OFFLINE within 30 seconds of disconnect. I've tried the various registry edits, none work. All other network functions to the SP4 are alive. I can PING, I can open a remote CMD prompt, I can remote regedit, etc. Two ways to bring the machine back ONLINE. 1. open remote cmd prompt and restart teamviewer service. 2. RDP into SurfacePro. Why do I feel this is a Teamviewer issue? BECAUSE when I close my RDP session from my SP4, Teamviewer never goes OFFLINE. Only when disconnecting a TV session. UPDATE: So, as I was hitting "POST", my TV client crashed. Once I reopened it, disconnecting from my SP4 no longer goes OFFLINE. I guess the client was sending a "go offline" signal?
... View more