Downloaded server files don't get saved

Hi guys, first of all I want you to excuse me if I have any mistake writing this message (I’m spanish).

The problem I have is that when I join any server, my game download the files of the server, but once I’m in the server I don’t have those files. I’ve tryed searching for the files in my computer but they’re anywhere.

Can anyone help me? Is really anoying having to download everything everytime I join a server

The server owner did not set up their FastDL correctly, blame them.

But it happens in every server and it only happens to me.

Make sure in your options, that Garry’s Mod options, under Multiplayer, you allow all custom content.

Make sure Garry’s Mod isn’t blocked by your firewall.

Done, but it still keeps happening