LW not connecting with 1 bar (not a wireless connection)

[jar3da]

1. OS version? WinXP
2. What firewalls you have? Windows Firewall
3. How much ram? 512mb
4. Hard Disk space available? 1gig
5. Connection type? Cable (hardwired cable, router shares with 2 wireless computers)
6. Modem & router brand name & model numbers? Moto SBG900 wirelss (although PC is hardwired cable, not wireless)
7. Where are you trying to connect from? home
8. What version of LimeWire (LW) & Java do you have? 4.12.11 1.6.0_01
9. Who is your ISP provider? Time Warner RR
10. Do this simple test for us. Using your browser go here: http://www3.limewire.com:6346/ The page should say 'Your test worked!'. What happens when you go there? Your Test worked
11. Are you sharing the connection with other computers or p2p sharing programs? Yes, sharing with 2 wireless computers.
12. Is this a your 1st try at LW or is this a new problem with an experienced user. Use to work, now doesnt after installing an additional Hard drive
13. Do you see a brick wall in front of the blue world icon at the bottom of LW's interface? Yes

its my roomates computer. worked fine, then installed additional hard drive which turned out to not work for some reason now LW doesnt run. he has the cable plugged into the router, then his pc. me and other roomate use wireless and can run limewire fine. i reinstalled LW, changed the port to the port mine is using, disabled firewall, enabled firewall, and nothing worked. dont know what to do next. thanks