no it can't be the router or its firewall...my main pc allows limewire and my son's pc which has a wireless connection like my laptop also allows limewire to work fine....it's just this darn laptop...i even took off the firewall and any anti-virus/spyware ...still doesnt work..it's gotta be something else cos my other pcs allow torrents etc...if it was the router surely the other pcs wouldnt be able to access these apps either?