This is a long shot. Has anyone seen any issues between Netscaler 14.1 latest release and WyseOS 10? Recently a group of wyse terminal users have mentioned that randomly they would get kicked out immediately upon logon to desktop. Nothing changed recently in the Citrix environment except Netscaler upgrade to latest 14.1 for the latest CVE. No errors on VDAs that I have seen. Other wyse users running older versions of the OS have not reported any issues.

What was the specific build number you were using previously that didn't have these issues? Check /var/nslog/ns.log logs for more details.