I'm trying to download the 9gb patch after installing all WoW cd's (original, tbc, wotlk and cataclysm). The HTTP Direct Download speed used to be about 200-400 kb/s. After losing connection to the patcher alot of times it finally works properly. The only problem now is that the downloadspeed of the HTTP Direct Download drops down to 0 - 0.1 kb/s after some minutes. Every time I start the downloader again it's downloading about 300 kb/s and drops down again. Someone got the same problem?

I also get an error saying "Your computer appears to be behind a firewall". I have always had this error since I started playing WoW about 4 years ago. It never caused any troubles.
Anyway, I tried shutting off my firewall but it didn't help. I also logged on to my router and added WoW to it. This didn't help either.

Is there another way to install this patch? Like a direct download that actually works..?

Thanks in advance.