Welcome to the PCHF Bmorgan,
Believe it or not - I had the exact same issue with my computer when i first upgraded to Vista...the post can be located here -
http://www.pchelpforum.com/windows-v...ta-issues.html
The excert you will be interested in is right here...
Originally Posted by GaRHaR
To fix the Error Code: 8000306...well that was alot more difficult - because anyone who was using MSN Live could have received this - some said it was due to IE7, others said that it was due to NIC drivers...others said it was to do with the MS Server...
Eventually, I pinned it down...the majority of this issue, was occuring off Netgear based routers (of which i have one)...located the latest firmware...and bang...problem solved.