Thank you for the advice... Windows Firewall is disabled, I'm sorry if I didn't make that clear in the previous post. I am using PC Tools Firewall Plus and have set it up to allow limewire. I know that the settings on the firewall are correct because the Toshiba on this same network is also running PC Tools Firewall Plus and is allowing limewire to run with no problems. I double checked that Windows Firewall is off, but even so, limewire was already checked off as an exception, so that isn't the problem. Any other suggestions?