Hello, it looks like we have had similar issues, so here is what happened down here and hopefully it will be of help:
We updated our server but it did not work properly, after 4 hours on the phone and been put through to answering machine 7 or 8 times, we got hold of support who checked our licence was correct for the server and client version we had installed. They also made sure the installers were in the update folder and clearing it completely of the older version. Afterwards manually installing the new version and restarting fixed about half of the machines.
Impero sounded incredibly busy over the phone, so either keep trying that or email them using their support email found on their webpage would be the best advice until you get through.
I'll update if I find out anything else!
