did you reboot after they announced the fix? If they had a DNS issue, maybe you need to register again. I am not sure what the issue is or was.. Could have been something with the naming such as the incorrect FQDN for the primary DNS I suppose, but of course thats just a guess.
I believe Tim asked us all to reboot after the possible fix. I have not yet and I am still registered, but it might be worth a try.

Just a thought. Good luck.

Kevm