Same problem here too. I am running Windows 10 Pro 64-bit and my remote is running the same OS. The remote display resolution is set to 1920 x 1080 but when I remote in with Teamviewer 12, I only get a maximum resolution of 1280 x 720 (incidentally, 2/3 of the expected display resolution). This issue has only started to occur recently so I suspect it is due to either a recent Teamviewer 12 update OR the windows 10 creators update (version 1703). Remote access using Microsoft Remote Desktop does not exhibit the problem. Any help on this problem is much appreciated.
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