LiveUpdate failing 225MB every few days

>Every 2-3 days Liveupdate stops working.  When I manually update even if the last update was 12-20 minutes ago it wants to download 225MB. 

 

I downloaded 225MB on June 5th and again on June 9th. In history it showed that Norton failed on June 10th, since June 10th I  tried to update but it kept failing until June 21st.  Today, June 23rd again liveupdate stopped.  I was able to trick it into restarting but I know it will fail.

 

Why is this happening?  What can I do?

 

If I get disconnected or log off before it finishes, it will start all over again at 225MB.  Sometimes, it will complete the download but still fail.

 

Thanks