Blocking the fall back to port 80 in the TeamViewer application

Hello!

We have a requirement in our company to block the fall back of port 80 of the TeamViewer application. So if port 5983 or 443 cannot be used (for whatever reason), we would need the applciation to not try on port 80 and just error out.

Can this block be done in the applciation itself (either a configuration setting or registry key)?

Technically speaking it can be done on our firewall, but before going that route we need to ensure it can't be done from the application itself.

Thank you for any assistance! Let me know if this question is unclear.

Chris