I did check the rest of the forums.
I deleted all of the folders.
I reset my winsock
Still seeing same thing as original poster. I even grabbed an old old copy of the updater and got the same thing. The updater downloads the file and displays nothing. When I hit the output button I get:
WAU Version (220.127.116.117) assembly version (18.104.22.168951)
Auto-retry of addon list load
From all of the posts I'm reading of people having problems I'd say its a good bet its a serverside issue.
And magically it starts working again without any additional changes or reboots etc...