If your running McAfee, the fix for most is to uninstall McAfee and run another program.
Avast is a good one to try.
Some people have been able to get it to work without uninstalling McAfee. See:
http://www.gnutellaforums.com/showpo...2&postcount=44 http://www.gnutellaforums.com/showthread.php?t=69077
Check which version of java you have installed. Open LW and click on Help>About LW, and it'll show the version of LW and Java your using. You should be using Java 6, if not uninstall your current version and d/load the one called (
Java Runtime Environment (JRE) 6u1) using the offline installer:
Java SE Downloads
You'll also need to allow LW access through your firewall:
Firewall configuration instructions (click on link).
Try setting up your router for UPnP, search the faq's here:
D-Link TechSupport - Chose Your Country
More instructions in this thread:
Connection problems? Check here first!