Strange download behaviour?

That’s strange, I just started downloading the Office XP service pack 3 from the microsoft website but was only getting 5kb/s. Being two version of the patch (full and a smaller one if you have the original CD handy) I thought I’d try the other and that also got just 5kb/s. So then, I logged into my web server (which is in a London datacenter) and got the over 600kb/s (whilst still getting 5kb/s over the broadband). So then I downloaded the copy from my web server and I’m getting 52kb/s (a normal broadband speed). I wonder why it’s so much slower from from MS > Office compared to MS > WebServer > Office? Oh well, I’ll probably never know…