Due to lifecycle management (LCM), we replaced several Citrix NetScaler appliances with new ones. Although we conducted thorough acceptance tests before putting them into production, unfortunately, we experienced an annoying issue once they were operational.
Some users complained that they saw a spinning progress bar after they successfully logged on to the Citrix NetScaler. It was only reported by a minority of users and was resolved by refreshing their web browser sessions. In the end, users stopped reporting the issue because it occurred infrequently and the solution was simple—just press F5. We initiated an investigation in the hope of completely resolving the issue.