It is easy to find out which logon you are currently using, and on which GN4 server you are logged in.

Which logon you are currently using?

Look at the title bar of the current GN4 application: you see the application name (Fred4, Ted4 etc), the full name of the user you logged in as, and the name of the current GN4 connection (1.6).

Getting details about connection

On the Help menu, select Connection Manager. Review the Name box: it contains the name of the current GN4 connection. Review the URL box: it contains the URL of the current server.