Asking for help in the connection problems section instead of here will do wonders. Read through the sticky's there to find more thing to try yourself and if that doesn't work then post your system details and explain what you tried in that section.

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Limewire 4.12.3 / Newest Phex / Newest Azureus

I recommend using either an old Limewire version without BitTorrent support or Phex for Gnutella, Azureus is BitTorrent. None of this Limewire Gnutellatorrent hybrid crap.