I have a licensed TeamViewer 12 installed and support about 50 TeamViewer 12 computers. All the 50 computers work fine except one: I can connect to the remote computer but cannot control that particular computer. The mouse clicks do not have any effect on the remote computer. Both my computer and that remote computer have Windows 7 Professional system.
Searched online and tried all the possible configurations I could find on the remote computer without success. I was able to control that computer before. Not sure what has changed on that computer to prevent TeamViewer control.