Connection Error - "Not connected to router"

[rachelb]

I downloaded and have successfully used TeamView on MacOS Sierra to connect to a Windows desktop. After successfully connecting three times over the course of a week, I am now getting a recurring error referencing a lack of router connection, though sometimes it doesn't even give me that message, it just loops back to the 'Connect to Partner" screen.

I have tried uninstalling and downloading the program anew.

Any suggestions?