I have observed a strange phenomenon with Teamviewer. When are logged into your Teamviewer Account on a Terminal Server and you try to connect to another client, where easy access is configured and no password is set, i get the following Message :
The password you have entered is invalid, please try again
There is no clear pattern when the connections work and when not. I have even included new remote machines to our account with different configurations and a brand-new Teamviewer installation. Before we had Version 7 installed on our local and remote side, it worked fine.
It doesn't play a role if you have the following Versions installed on the remote or local clients:
On the remote machines log files i get the following messages: