You can try completely disabling Avira for a short period of time to see if this resolves the issue. If it does work, then unfortunately Avira is the cause and we can only advise that TeamViewer needs to be added as an exception.
You can try completely disabling Avira for a short period of time to see if this resolves the issue. If it does work, then unfortunately Avira is the cause and we can only advise that TeamViewer needs to be added as an exception.