Login to Web UI seems to work but then returns to login screen

Problem: Logging into Web UI appears to succeed authentication, but then returns you directly to the login screen.

Cause: This is often caused due to the web session token being invalid or expired.  The most common reason for this is time skew.

Solution: Ensure that the times on the client machine and the VAST system are in sync taking into account time zone (VAST systems generally are set to UTC)