I've been using limewire for years and never had a problem, but now all of a sudden it won't connect. It shows that there is a firewall blocking it but both firewalls are set to allow limewire and I haven't changed either firewall since it was last working. I've tried all the suggestions but it still won't connect

I use vista with an admin account, I have norton 360, use broadband with a belkin router, i'm connecting from home, with lw 4.18.8 and Java 1.6.0_11, the test worked, its a new problem and im an experienced user, there is a brick infront of the blue world, I live in england and have made no changes to my system

Welcome to the Gnutella Forums, Blindpilot.

Using two firewalls can cause issues with Less Protection. Try disabling the Windows firewall and give LW Full access through Nortons Firewall.
You also may need to forward a port for the Belkin Router. See Link

PortForward.com - Free Help Setting up Your Router or Firewall

Another thing that comes to mind is your ISP. Seems that they are really cracking down on P2P in the UK. Might give them a jingle and see if they will give you an honest response.
Hope this Helps.

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Tried all that, I even turned off both firewalls, but it still showed a wall infron of the blue world!!!