OneCare checks to make sure that no important updates are available at Microsoft Update during a Tune-up.
The fact that it was unable to reach Microsoft Update has nothing to do with your subscription status.
Go to Windows Update manually to check for updates. If you encounter a connectivity error, you can either contact support or start here for troubleshooting Windows Update issues:
Windows Update Solution Center - http://support.microsoft.com/ph/6527
How to reach support (FAQ) - http://social.microsoft.com/Forums/en-US/onecareinstallandactivate/thread/30400b52-7f26-4ba0-bc18-17e305329d90
-steve
~ Microsoft MVP Windows Live ~ Windows Live OneCare| Live Mesh|MS Security Essentials Forums Moderator ~