Hi, I have the same issue too.
I have dynamic IP and use a router, but te settings are ok.
I noticed that if I wait for some time, after reaching a huge amount of "filtered", I can start seeing the shared files.
And the dowload starts quick and fast as usual.
So I have two questions:
1) what does "filtered" mean in the search window???
2) how can avoid of having a great amount of file filtered and waiting for a less time?
Thanks to everybody in advance! -Luca