Hi Alexey,
I've issued a help request to the server administrator, so just awaiting a reply from him.
Yes, starts in fully functional mode but then reverts to demo (even when connected to the university VPN...which is required to just use the floating licence).
There doesn't appear to be a time frame associated either, for example, it's not regular, like an hourly check, just appears to be random.
I can reconnect, but my workflow has been interrupted by that point (either by a save point or a non demo function).
Cheers,
Leon