Clients are not pulling updates from WSUS

First of all I do not have that great of a knowledge of Servers in general. I am though trying to figure why the clients aren't taking the updates from WSUS, and how to fix it. On the server it says successful when approving them for the client computers but all the computers say the same error of "code 80072ee2". Now I checked through CMD, and it shows that it connecting to the correct server. Through the solutions online that I have looked at, I got the idea that maybe HBSS server was causing conflict, so I stopped that to see if that would work, no luck though. We had Mcaffee running but that got stopped as well. Any help with this would be greatly appreciated. Thanks

It might be possible that you do not have enough space to store all those updates. You can see that by expanding the WSUS drive and check it in the download more section.