Cubase 6.5 eLicenser angst

I work 18h a day with Cubase, and back from lunch, i had a bunch of scaring messages like “your elicenser cannot connect to the server” and “bla bla you have changed hardware”. I changed my video card 5 days ago, so why this problem now ? I still can launch Cubase but i got the registration option back again in the Help menu and i don’t like it. I’ve launched the eLicenser control center, done maintenance operation but it could not happen due to “server connection”. ??? What is happening ?

Do you have last version of eLCC? What about your firewall, and antivir settings? Maybye some these blocks communication with Steinberg server.