Uhm.. how to explain that..
For example, the firewall Kerio asks every time if a file is allowed to connect to the internet. And if something changes on that file, it asks again.
Hm, but if you disabled you firewalls, I have no idea whats the problem. If you have a router, the router can block something. But you have played before, so it shouldn't be the problem. Your speed isn't that important, just if it's really slow.
So I'm out of ideas now. Maybe the support can help you somehow.