Server 2003 SEP 12.1 client not receiving Live Updates

I have a Windows Server 2003 box running SEP 12.1.  A few days ago it stopped receiving Live Updates.  I ran the Intelligent Updater yesterday and that was successful in loading the updates but the Live Update feature is still not working. 

I found this article and just wanted to make sure that this would apply to my situation

http://www.symantec.com/business/support/index?page=content&id=TECH103176

This is one of our mission critical servers so I just want to make sure that this will not require a reboot.

Any other thoughts or suggestions would be great!