Seems like I have a crappy router
Even though, on the wifes xp box, my sabayon htpc, my sabayon laptop, my gentoo install, was only the sabayon limbo that showed the irc symptoms first...is also my main desktop.
As the days progressed, the other machines started to show the same error, on irc only. I still could stream movies, download iso, surf the web...after a couple weeks, all computers started to fail on irc, not just my main desktop with limbo.
I rebooted the router, now all is fine again. I am still confused on why it only affected irc, Think I am going shopping for a new router. The router has needed to be rebooted in the past, was always obvious at the time though.