"If" you read properly through Skyliner's advice, you'd have seen the link to supply system details. We cannot help much without them.

Trend Micro PC-cillin Internet Security 2009 does include a firewall. Is the PCillin firewall turned on or off? If it's on then make a firewall rule allowing LW, & disable Vista's firewall.
Setting up an exception for LimeWire in your software firewall (click in link)

Okay i am using limewire 5 on my windows vista and am unable to connect! This happened out of no where. I tried deleting the whole thing and reinstalled it, still no connection. Please help with a step by step process!

I have also checked my firewall and limewire is already an exception.

Try deleting your LW preferences folder? It must only be done whilst LW is closed; http://www.gnutellaforums.com/genera...der-vista.html

When setting up, it might be worth disabling performance options as described here: If LW Will Not Connect (click on the blue link)

Also another thing which most likly does not have to do with connection problems is that my limewire keeps freezing up. This problem has never occured before and i have been using limewire for probably 6-7 years. Problems with freezing and problems with connections started at the same time!

Remove all your incomplete files from your incomplete folder, if only temporarily. Then try opening LW. The incomplete files might be flooding the connection as well as freezing your LW. I'd back up your preferences folder or if you still have it, the downloads.dat & .bak files in the incomplete folder when you remove the incomplete files.

I checked my PC-cillin and changed it to allow LW through. Under the exemption tab the connection is ticked under outgoing. Is this correct or should it be incoming? I turned off windows firewall. Nothing has changed though I still can not connect. Also in LW the earth is still behind a wall. If I run over it is says limewire directs a firewall. I don't know of any other firewalls though. I don't have any other virus check on my computer. Would there be one in spybot or Ad-ware?

I think I finally got it working. In Limewire I click on Tools→Options→Advanced→Firewall then under Listen to port I changed it to 39720
And so far it is working. Thanks to everyone for their help and suggestions.

Limewire won't connect to the internet. It's says there may be a problem with your internet. but i also have a wirless router can someone please help me out. i also have a Windows XP.