My Limewire 5.5.7 will not connect...
 

I have windows Vista. I'm using a gateway computer & have an AT&T laptop connect card(The I found the internet thing or the my internet is faster than Mayweather thing). I have added lw as an exception 2 my firewall & windows defender didn't have a problem with it.

I updated from a lw 4 version for more speed can anyone tell me what's going on?

I'd suggest deleting your LW preferences folder, see the tips here for LW 5: If LW 5 Will Not Connect :)