How many other firewalls or Anti-Virus do you have and witch one's.Check them all they tend to block limewire from going out.
1. The 1st 5 I can add here are Insight. Insight seems to specifically target Limewire. One person found a solution (if only temporary), if you view the sticky in this section (Important!!! A Fix for those whose ISP's block Limewire - pages 1-3 have more proxy options.) See example here. AND More Proxy instructional help with specific details, links & sample
2. Tiscali is known in some locations in Europe (such as Italy) to filter/shape p2p sharing bandwidth (ie: slow down speeds.) There's been reports on the forum & various articles online. One reference is here in 2nd last article at bottom of linked page: Jurisprudence | EDRI (hopefully I can find some of the original articles I read last year in 2004.) More recently: Tiscali blocking Limewire. __The Tiscali company has focused its presence in 5 European markets: Italy, UK, Germany, The Netherlands and Czech Republic. It has bought control over many other ISP's in those markets and applies similar p2p blocking or shaping techniques in all. Tiscali owns an IP and VoIP network of 15,000 kms, covering all European countries, the US included. I have found a solution to getting Limewire to work with Tiscali
http://www.gnutellaforums.com/downlo...k-tiscali.html
See if this helps.