Apple’s Software Update faced networking error

Hello,
Psystar offers 13 non-Apple Software Updates. The first thing I tried to do after getting WiFi up and running was to run Apple's Software Update. An error message appeared despite connecting to the internet. Any help would be really appreciated.
Thanks in advance.

a networking error has occurred: timed out (-1001). Make sure you can connect to the Internet, then try again. Software Update can’t check for updates because of a network problem.
