Hello,
Notify about a connection could not be established reason unknown teamviewer in details as reference and thank you for the same too.
Brief About A Connection Could Not Be Established Reason Unknown Teamviewer In Detail.
Hey,
A connection could not be established reason unknown teamviewer can be due to n number of reasons such as now connectivity form any of the one systems connected to the same. Also can be wrong credentials enter for the team viewer ID or the passwords as well. Also can try again by re-installing the app and installing it again and the problem will be solved ASAP.