Here is all the requested info you guys want:

1. OS version?
Windows Vista, 32 bit, Administrator.
2. What firewalls you have?
Windows Firewall
3. How much ram?
2.00 GB
4. Hard Disk space available?
88.6 GB
5. Connection type?
Wireless, not sure if it’s Broadband or DSL
6. Modem & router brand name & model numbers?
Not sure, I think the router or modem is ZCM, I’m in a dorm, not sure about numbers.
7. Where are you trying to connect from?
College Dorm
8. What version of LimeWire (LW) & Java do you have?
LimeWire 5.5.14 & Java 1.6.0_21
9. Who is your ISP (Internet Service Provider)?
Not sure, I think Comcast
10. Do this simple test for us. Using your browser go here: http://www3.limewire.com:6346/, what happens when you go there?
Internet Explorer cannot display the webpage. Then I clicked on “diagnose connection problems”, it said windows cannot repair automatically & I was redirected to Windows Help & Support. I clicked on Windows Vista Internet Connectivity Evaluation Tool & got this report:
IGDEvaluators
Version. 1.3.5.0 - Report

Test 1 - Basic Internet Connectivity Test – SUPPORTED

Result:
Trying to construct an open request to the webpage: /windows/using/tools/igd/StaticContent/igdprobedocs/connectivity/test.txt
Received 37 bytes of content from the IGD test server
IPv4 Connectivity succeeds through the Internet Gateway Device
--------------------------------------------------------------------------------
Test 2 - Network Address Translator Type - SUPPORTED

Result:
Trying to resolve the Teredo server IP address
The IGD's NAT type is: RESTRICTED CONE
--------------------------------------------------------------------------------
Test 3 - Traffic Congestion Test - SUPPORTED

Result:
Trying to load library nsi.dll
Received 28 bytes of content from the test server
Restoring the original ECN settings
Turning off ECN
--------------------------------------------------------------------------------
Test 4 - TCP High Performance Test - SUPPORTED

Result:
Trying to load library nsi.dll
Received 65536 bytes of content from the test server
--------------------------------------------------------------------------------
Test 5 - UPnP Support Test – NOT SUPPORTED

Result:
The operating system is Windows Vista
The firewall is enabled
Exceptions are allowed by the firewall
UPnP is enabled by the firewall
UPnP services are running
UPnP Discovery is enabled
Detecting Internet Gateway Devices on the network
0 IGD(s) found
Failed to find any Internet Gateway Devices
--------------------------------------------------------------------------------
Test 6 - Multiple Simultaneous Connection States Test - SUPPORTED

Result:
This test attempts to sustain 80 concurrent TCP sessions
The Internet Gateway Device sustains 80 concurrent TCP sessions
11. Are you sharing the connection with other computers or p2p sharing programs?
Probably yes, with other people, its wireless in a dorm.
12. Is this your 1st try at LW or is this a new problem with an experienced user?
I have used LW for something like 5 yrs. so I would consider myself experienced.
13. How many red or grey or green bars do you see at bottom left of LW's screen?
The bars are all grey, next to the bars it says connecting…..
14. For those using a modem/router, how is your modem/router set up...are you port forwarding or is UPnP enabled?
Not sure
15. What security programs are you using (antivirus etc.)?
Microsoft Security Essentials
16. What country are you living in?
USA
17. Has anything in your setup changed recently? Have you updated your version of LW or Java? Have you added any new software or new hardware? Have you updated any software? Have you moved house, changed internet plan or ISP etc. etc.?
I haven’t used LW for over a month, I used to be in a house, now I’m in a dorm, I have the same ISP, Yesterday I went to use LW and it was having this problem of not connecting, so I updated, still the same problem. Then I searched all the forums and tried everything to fix it, still no luck. Here is the list of what I have tried:
CHECKED FIREWALL
DISCONNECT/RECONNECT LW
UPDATE/REINSTALL JAVA
UPDATE/UNINSTALL/REINSTALL LW
CHANGE LISTEN ON PORT
DELETE LIMEWIRE'S PREFERENCES FOLDER
DISABLE ULTRAPEER CAPABILITIES, DHT & TLS
If a "how to fix-it" was posted on this issue, I tried it.

What I suspect the issue is, is the dorm. Nowadays many if not most universities & their dorms block or shape p2p file sharing programs. What you can try is go to LW's menu bar, Tools -> Options -> Advanced, Firewalls. Set to manual port forward. Change port number to one between 49152 - 65535 for both connecting & listening through. You may need to restart LW after this. If this does not work, not too many options left unless you try proxies which can be complex & time consuming to set up & change.

Alternatively, Phex is a less known gnutella program & might not be blocked. You could give it a try to see if it works connecting to those high port ranges. http://www.phex.org/wiki/index.php/Get_Phex

I have same problem. I've been using Limewire for years. Never had a problem connecting before. I have Version 5.5.14. I'm using windows xp. I've tried uninstalling, reinstalling. checked firewalls, disconnect and reconnect. everything heather has tried. I'm trying to connect using internet access through a motel. I think they're ISP is direct tv. help please...

It is quite possible that the motel is blocking LW.

thanks, i figured that was the problem. Sucks big time!