The most common cause of users not being able to connect to the Floating License Manager is that the two ports required (27001 and 49630) are not open on your firewall, or the user is putting the wrong hostname and port details into the Activate License window. Users should check these details with the person who set up the Floating License Manager, and also ask them to check that the server is still actually running. Another common reason is your site’s proxy configuration is sending all traffic offsite so Geneious can’t see your local machine running the license manager.