Thank you for your message and welcome to the TeamViewer Community! 🙌
The remote computer you are trying to connect to might have a Black or Whitelist enabled, which is blocking you.
Could you please check in the TeamViewer options and see if it is the case?
To do so, please click on Extras → Options → Security and click next to Black and Whitelist, click on Configure.
This is not the issue. The message I keep getting when I try to use TeamViewer is "Connection not authorized". The indicates some kind of disablement coming from the TeamViewer team. From the message I can't tell what the problem is and I can't get any help from TeamViewer customer support.