Rouche

Hi all, I'm 22yo and Student in IT. Now i'm in an internship for 15 weeks. I first configured a SCCM2012 solution which worked fine in Luxembourg. Now i'm trying to do the same configuration in China via Remote Desktop. I created my collections, imported clients, created SUG, created deployments, configured SCCM client settings. But i've a problem. Software Center can't retrieve updates from server. The client is a Windows 7 with a basic image. (no updates) and i try to deply critical and security updates. Firewall is OFF. I found this in my SCCM server. (Monitoring) Can someone help me ?