Well, I suppose it could be with my ISP, but since a lot of people were reporting the same problem I concluded that the problem was probably more general. Although if the problem is in fact with my ISP I will cancel my subscription on the dot. I don't have any firewalls going, so it can't be that. What I did was go to the Gnutella Developers Forum and copy and paste every single known hostcache into the program, and some of the other ones indeed work. Even if the problem does lie with my ISP then they must only be messing with a few servers. How could I find out, send them an email and ask them 'are you blocking any Gnutella hostcaches'? Well, I guess I'll continue connecting as best I can in the meantime.