"crypt32 Event ID: 8

Failed auto update retrieval of third-party root list sequence number from: <http://www.download.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootseq.txt> with error: This network connection does not exist."

If like me you find the above message reported hundreds of times in your event logs here is what is going on.

Cypt32 from what I understand is a subsystem that gets used by several products including Mcafee, Crpt32 likes to go off to the internet to get updated root lists, however if you have a proxy server you have to tell crpt32 to use it.

On each client that is getting the message you will need to run 

%SystemRoot%\System32\proxycfg.exe -u

There are several switch you could use the -u switch simply imports you Internet Explorer settings.

I triggered the above command from a login script on all of our clients but first I had to create a GPO to modify the registry permissions as the default is users cannot run this command due to not having write access to a reg key. Please comment if you would like more info.

You alternatives are to punch a hole in your firewall or proxy, or you could just live with the message.