Problems to start/activate Draftsight

Hi everyone, on our company we use the free version of Draftsight. Every time when I start the program as normal user the program doesn't start.

I have felt in the proxy settings, looke or something were blocked in the background (proxy settings) but nothing was wrong.

When I install and run it as administrator it runs fine, but when I try it with my normal user the program ask to activate again. Is there anyone who can help me with this program.