Take a look at:
http://www.cableforum.co.uk/board/showthread.php?t=25770
I seem to be suffering the exact same problem. What day did the loss occur?
What area do you live in? This may be a Netgear issue as I've tried another new router from them (different model) and I'm still getting this failure.
I've not heard back from Monkeybreath, and apparently all my messing around has caused further problems.
Hope you figure something out.
Mr Wonka
TIP: Ring Netgear support later in the day (5:30+) to get an english person. Living in England.