When my PC starts up, Teamviewer is starting and is visible in task manager but does not show on the desktop there is also no icon next to the clock and I cannot connect remotely to this PC although it shows online.
When I stop Teamviewer in task manager and start it manualy it works like it should be. For operational reasons Teamviewer must be active at startup.
I'm on Win10 - It worked fine a time ago.