Can't connect brick wall picture comes and goes
 

Ok everytime I open limewire on my laptop which is old it operates on windows 2000 professional. Its a dell latitude. I Have not found any firewall such as norton or mcaffree. This problem comes and goes. Sometimes it takes 2 or 3 minutes and others it will not open up at all. I get no error messages or anything and I can't find my firewall to allow. But it sometimes works by just waiting. Can anyone please help?