Im having the same problem now.Im in Texas. Had this problem and another off and on with netflix signing in but not showing any titles, saying their unavailable the past two weeks. Im thinking about switching to hulu.
I'm in Florida and when trying to sign to Netflix I get the same message each time: "We're unable to connect you to Netflix. Please try again later."
I've tried restarting PS3, resetting my router, but nothing's worked so far.
It does seem like it's a Neflix issue because I have no trouble with accessing other content from the web through my PS3 at the current moment.