Windows 7 MC issues with Netflix

[Pablo 54]

OK, spent the last 24 hours trouble shooting this issue and have read a bunch of postings all with slightly different takes on how to fix the problem none of which have been effective for me.

ISSUE: Streaming Netflix through my HTPC running Win 7 (64bit) no longer works. Was fine Tuesday evening, NOGO Wednesday evening. This is specific only to Windows Media Center. Runs fine using IE9 on all three machines and on my Samsung BD Player but will not run on any of my computers via WMC.

The error message is: Authorization failure......Our apologies, we could not authenticate this request.

I could list about 20 things I have done from simply changing my Netflix password to doing clean installs of WMC/Netflix app plus Silverlight. No dice. My guess it is a Win7 issue. Most postings say not to bother calling Netflix or M$ because they will blame each other for the problem.

Any advice would be welcome.

One other item I left off. Will not run via Boxee either.

Thanks,

Paul