Hi, same over here. I have this problem since Microsoft rolled out the 1703 "creators update". It is no option for me, to leave the screen of my Surface 4 Pro on all the time or to keep it unlocked in some other way. Teamviewer worked flawlessly before that update and now after 5 Minutes it is going offline even though every single energy saving option of the SurfaceDock ethernet adapter is turned off and all windows energy saving options are optimized (it had worked before after all). This too made me suspect the "Modern Sleep"-feature. After the post(s) from Jeremy I experimented with that and I think he is right. But what I don't get is why there is no workaround for this. For me personally Teamviewer is the best (free) solution to help my family with their everyday computer problems right when they are facing them. - So don't get me wrong: I am very (!!!) thankful to you guys for making such a powerful software free to use for personal stuff. However other (free) remote control services do not have the same problem. I installed another remote controll service. I am not sure if I may state the name here and to me it is not important because I do not want to advertise it here (and I want to keep using Teamviewer). The interessting thing about that is: Both services (Teamviewer and the other product) run simultaneously on my Windows 10 driven Surface tablet. And while the Teamviewer goes offline when my tablet shuts down the screen and locks, the other service keeps running and stays online. I am testing it since yesterday from my office. So is there really no way to patch this?
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