Greetings,
One of my clients has a large number of PCs with Teamviewer QuickSupport EXEs used to receive my tech support via Windows authentication using admin accounts while their employees are logged in on their regular, non-administrative Windows domain accounts. In all but one case, they work correctly: an UAC prompt window shows up, they click OK, the app restarts and I'm in.
On one PC, however, this prompt does not show up automatically. On their end they receive red light and a simple "authentication failed" message, while on mine I get no error message on first attempt and "partner did not confirm UAC authentication" on the second (not this exact wording - different language than English). However, if immediately after my first attempt the end user manually closes their Teamviewer QS window with X button, the app automatically restarts by itself, UAC window pops up and the remote control connection is successful.
This problem occurs on all non-administrative accounts (the admin ones have their UAC prompt show up immediately upon .exe launch) on this one PC only. I've already attempted solving this issue by giving this user Full Control windows security permissions for TeamviewerQS.exe, but it didn't work.
What can I do to fix this issue? The workaround described above does work, but it makes receiving tech support unnecessarily annoying for my client.