Answer to the questions:
1.Windows XP
2.Windows Firewall, Limewire allowed as exception, so is JAVA
3.256MB RAM
4.10GB Hard disk space available
5.Broadband
6.LAN connected, no router
7.Home
8.Limewire 4.12.6, Java 1.6.0 rc2
9.My ISP is asiatel from spectrabd.net of Bangladesh
10.http://www3.limewire.com:6346/ say test is successful
11.No i don't share connection with anyone
12.I am experienced LW user, recently I am not able to connect when my ISP changed their service provider.
13.yes

I used Limewire for many days. After recent event, my limewire can nither connect nor some partially completed download with many hosts.