TV QS can't be started from windows 10

Hi,

This morning, I have a user on a new computer that can't start teamviewer qs on windows 10 ... The message is that the application is not sure and is invited to use windows store application.

So, I asked him to download teamviewer from the windows store ...  that he did ... and my tv says " This Partner does Not Accept Incoming Connections"

So, how to fix this problem ?

Thanks a lot for your help

Regards

Stéphane