Comodo Internet Security 3.14.130099.587 can't update.

Hi. This is my first time in comodo forums. I’m a technical support of my department, and my problem is I can’t update my Comodo Internet Security Antivirus which is installed in a Windows Server 2000 and it says Error:106 Update could not be completed, not able to connect to internet, please check your connection settings. When I check my internet connection, everythings doing fine I can surf to the internet. But I cannot update my comodo. Please guys help me… I appreciated for any answers.