error 8024401b, Failure Content Download , Error: Download failed.

[Antonio00]

WSUS has been recently installed by me on a Windows 2000 Server with Service Pack 4. If I am trying to update a client machine, that will be XP SP1 or Windows 2000 SP4, then I am getting the below error message from the WindowsUpdate.log:

2005-06-23 11:51:33 732 5d4 AU >>## RESUMED ## AU: Download update
[UpdateId = {0144D999-B8F3-490C-A381-5E3FB22731BE}]
2005-06-23 11:51:33 732 5d4 AU # WARNING: Download failed, error =
0x8024401B
2005-06-23 11:51:33 732 49c Agent *********
2005-06-23 11:51:33 732 49c Agent ** END ** Agent: Downloading updates
[CallerId = AutomaticUpdates]
2005-06-23 11:51:33 732 49c Agent *************
2005-06-23 11:51:33 732 49c DnldMgr *************

Can anybody help?

[Bon-Z]

The error that you have mentioned seems to be some kind of proxy authentication required which is HTTP 407. Can you tell us whether on your WSUS server that are you hosting content locally? Also, the machines in your corporate environment need to go through a proxy to access the internet, so does this proxy also uses authentication?

[Hockson]

Try the below fix:

1. Open Windows Update by clicking the Start button Picture of the Start button, clicking All Programs, and then clicking Windows Update.
2. In the left pane, click Check for updates.
3. If prompted, provide your network credentials. If Windows doesn't prompt you to provide credentials and you see error code 8024401B instead, click Try again.
4. When prompted, provide the credentials that you use to access your network (for example, your user name and password). Windows will automatically continue the update process and notify you if you need to install updates.

[nitin dupare]

I have similar problem with my WSUS here is windowsupdate.log file

2010-05-21 00:03:27:765 972 b8 Report Uploading 32 events using cached cookie, reporting URL = http://si-k3-300/ReportingWebService...ebService.asmx
2010-05-21 00:03:27:781 972 b8 Report Reporter successfully uploaded 32 events.
2010-05-21 00:03:27:828 972 b8 Report Uploading 32 events using cached cookie, reporting URL = http://si-k3-300/ReportingWebService...ebService.asmx
2010-05-21 00:03:27:843 972 b8 Report Reporter successfully uploaded 32 events.

[agarwalm11]

It might be possible that you are not able to download updates when you access the Windows Update Web site from a Windows XP-based computer that is behind a firewall or a proxy server. Windows XP uses Microsoft Windows HTTP Services (WinHTTP) to communicate with the Windows Update Web site. Windows XP also the Background Intelligent Transfer Service (BITS) to download updates. You can solve this issue by reading for some workaround given here - http://support.microsoft.com/kb/896226