I've just upgraded to a new internet package with my ISP which boasts 50 Mb/s download and 30 Mb/s upload, much faster than my previous 6 Mb/s download and 1 Mb/s upload. However, my desktop computer on a wireless connection is experiencing incredibly slow download speeds, maxing around 400 kb/s (in µTorrent, Steam etc). Browsing is also a real pain - I can't even try using Firefox because it always hangs and takes forever to load (if it loads at all), while my MacBook Pro is gaining full advantage and downloading and surfing the web at super fast speeds.
I've already had a guy come in and change the router, but nothing changed. I'm constantly scanning my computer for viruses and spyware, but it hasn't found anything. The really weird thing is that when I go to a connection speed test site, I get pretty much what I should be getting.
What could be causing the downloads and browsing to be so slow?