Thanks for the image posts. Though of course the distance to your Teamviewer contacts is irrelevant. If I connect from one side of my desktop to the other side, it's going through national, and perhaps even international servers. I have to wonder what you're doing over your free TV connection that triggers this. Are you using commercial software packages? The message does refer to detected "software that seems to be used in commercial environments". I dunno, maybe you're pulling up a SalesForce screen? Wordpress? Drupal?
If you want to do the research, there seems to be a lot a of discussion online about this. Just Google software 'commercial environments' Teamviewer. There seem to be ways to fix this, but they seem to involve changing the MAC address of your machine, which can be a big effort.