downloading server data problem.

Posting this for a friend cause hes also having sig-up issues.

Since a update, when joining some servers. Gmod refuses to download the data from the server. It starts downloading and never goes over 0%, but it doesn’t freeze up.
It worked before the night of the update, so it was from one day to the other.

specs
Windows 7 64 Bit
Core i7 2.7GHz
6 Gigs RAM
Nvidia GTX 285
F-Secure 2010