Windows 7 Computers Not Ready, Please check your connection

My organization seems to have a problem with Teamviewer on Windows 7 machines.

All of the teamviewers that are on windows 7 Machines are saying: "Not Ready, please check your connection"

On the same network I am capable of teamviewering into Windows 10 machines but not the Windows 7 machines.

I have confirmed internet, updated teamviewer, flushed the DNS on the Windows 7 machines.