TV dropping connection on all 5 remote PC's

[liserwork]

I have been using TV flawlessly for over 1 year.  All of a sudden I connect to the remote PC's, and I will lose the connection within a minute or so.  It will reconnect and then disconnect again.  Is there a certain port that has to be open on the windows firewall.  They have been having some issues with the firewall connecting to certain programs, this happened all of a sudden.  I am thinking a windows 10 update, or Advanced System Care sometimes messes with the services.  Any how, any help would be appreciated, this is very frustrating.

[matt]

https://www.teamviewer.com/en/help/334-Which-ports-are-used-by-TeamViewer.aspx