1. OS version? (eg: Windows 98) = XP HOME
2. What firewalls you have? = WINDOWS
3. How much ram? = ?
4. Hard Disk space available? = LOADS
5. Connection type? (eg: dialup, broadband, cable, etc.)= BROADBAND
6. Modem & router brand name & model numbers? = SAGEM FAST 800E3
7. Where are you trying to connect from (house, appartment complex =school, student accomodation, work, etc.)? = HOUSE
8. What version of LimeWire (LW) & Java do you have? (Go to LW's menu Help>About LW...) Will show both LW & Java version. LW=4.12.11 , 5.1.0_10
9. Who is your ISP provider (Internet Service Provider)? TISCALI
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? If yes, please give details of set up. =NO
12. Is this a your 1st try at LW or is this a new problem with an experienced user. =I HAD SAME PROBLEM WITH 360 DELETED THAT INSTALLED LW WORKED GREAT FOR MONTHS. NOW NOT.
13. Do you see a brick wall in front of the blue world icon at the bottom of LW's interface? =YES

Tiscali. Ouch.

Search the forum for Tiscali & you'll see a lot of people are in the same boat.

can't connect between 5pm-11pm
Tiscali blocking Limewire
Limewire working perfectly - now not at all !!

I have found a solution to getting Limewire to work with Tiscali

Is LW not connecting at all, or is it just the firewall icon that's bothering you?

Have a look through those threads. See if the solution works for you. You'll also find more info about changing ports within a couple of threads. Changing to a higher port has allowed a couple of people to connect

I don't think that your modem has an internal firewall. Are you using a router as well? Just double check the config of your Windows firewall.