[QUOTE=Botox]Not sure how much more I can help without knowing more. Perhaps some system details will help: System details - help us to help you
1. OS version? (eg: Windows 98)
Windows XP sp2, as stated before.

2. What firewalls you have?
None, as stated before.

3. How much ram?
496MB (though it's not particularly relevant as my sister has the same problems on her computer)

4. Hard Disk space available?
201GB

5. Connection type? (eg: dialup, broadband, cable, etc.)
Broadband, as stated before.

6. Modem & router brand name & model numbers?
GART2-4115 as mentioned before.

7. Where are you trying to connect from (home, school, work, etc.)?
Home.

8. What version of LimeWire (LW) & Java do you have? (Go to LW's menu Help>About LW...) Will show both LW & Java version.
LimeWire 4.12.6
Java 1.5.0_06

9. Who is your ISP provider (Internet Service Provider)?
Tiscali as stated before.

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?
It works.

11. Are you sharing the connection with other computers or p2p sharing programs? If yes, please give details of set up.
I'm sharing the connection with my sister's PC, and my Mam's laptop. They all connect via the router.

12. Is this a your 1st try at LW or is this a new problem with an experienced user.
This is my first try.

13. Do you see a brick wall in front of the blue world icon at the bottom of LW's interface?
I did, but enabling UPnP got rid of it.