Hi,
I have exactly the same problem as the 10 people who commented on this post:
https://community.teamviewer.com/t5/TeamViewer-General/Control-PC-from-iPad-with-WiFi-but-no-internet/m-p/4180#M1377
There was a response from a Teamviewer moderator, but the solution doesn't work (anymore).
Please help me and the other 10 users.
Kind regards.
Thomas