I have sucessfully installed WSUS 3.1 and am able to see "most" of the computers on my network. I have set up so that GPO forces the computers to update daily at 10am but nothing seems to happen. I have synchronized my WSUS server and approved a number of updates but when the time comes for computers to update, nothing happens with them. All of my computers are running Windows XP SP2 and have the latest Windows Update client.
I'm not sure if there is some GPO set that would disallow the computers to update or not and am hoping someone can give me some things to look at to troubleshoot this.