We recently upgraded to v18 (18.1.0 22733 RAS, 22712 clients). The new 'sessions' tab is great, and we see a lot more information. Of about 100 clients, we notice only about 50% are connected via. UDP, and we're puzzled as to why. All Clients have the same policy (we have a single policy for all users) Network-Level authentication is enabled (via. policy) Everyone accesses Parallels from the same remote.company.com external DNS/IP), so firewall rules are all the same and as per Parallels' documentation Everyone is on the same version of client Everyone is on Windows 10 Pro, up to date. Internet connections are similar across the board No obvious commonalities or reasons why some people are TCP and others are UDP. I can't really figure out why some people are TCP, others are UDP. Thoughts or things I can check?