TV 15.2 on mac used to work but now refuses to connect to PC
I have Team Viewer 15.2 on my Mac and on a windows 10 computer. These worked fine with each other up until a short while ago. Now when I try to connect to the PC it refuses the connection. I can connect from the PC to the mac but not the other way.
The PC shows "incoming connection" and then "authentication rejected".
All settings in the preferences are identical between these two computers