Teamviewer 14 not "ready" on Ubuntu 16. Teamviewer 13 works.

As per title. I have tried installing both the main and preview versions of Teamviewer 14 (lastest), and both report that Teamviewer is not ready and not able to connect despite there being a standard wired internet connection (no proxy or similar).

Teamviewer 13 has no problems installing and working, but this does provide problems for us since support engineers are trying to remote to our system, and they use Teamviewer 14 by default (which does not support connecting to the older version).

 

Edit: We suspect that it is trying to use a non-internet-available ethernet port (which is connected to another computer)