Files Wont Download

Every time I join a server none of the stuff will download. I have asked countless friends what to do but nothing has worked! I have it set to allow custom files to download in the options menu. I dont know what else to do! Hope you guys can help me. It has downloaded in the past, but now I got a new Desktop and it is running Windows 8 #cutfortrolling and I downloaded Steam, CSS, Gmod without problems. Someone please help! I would like to see this stuff!

The issue may just be that the server doesn’t have downloads correctly set up

No they do. I know. Everyone else can download I cant.