7.4.7600.226 Windows update agent questions

Hello Experts,

   We have a WSUS server 3.2.7600.226 and all client/workstation WUAgent version is - 7.4.7600.226. We have not updated our WSUS server according to http://support.microsoft.com/kb/2720211KB.

  Now problem we are facing here is , there are around 4 Client systems which are having WUAgent version - 7.6.7600.256. These system are not getting properly synced with our WSUS server. When I check the windowsupdate.log file I get below error message on all the 4 servers.

WARNING: WU client failed Searching for update with error 0x800b0001

  MY question is ,

 1. I belive WSUS server is the one which pushes WUAgent on all the client/workstation systems . Am I right?
2. WUAgent version - 7.6.7600.256 will not work with WSUS Version - 3.2.7600.226 ? Do we need to have WUAgent version - 7.4.7600.226? (I think so)
3. How these 4 servers got 7.6.7600.256 , As I belive WSUS server with version pushes WUAgent - 7.4.7600.226?

Thanks,

_Prashant_
LVL 10
Prashant GirennavarAsked:
Who is Participating?
 
DonConnect With a Mentor Network AdministratorCommented:
"How the WU Agent gets updated on client systems ? From WSUS server or from Microsoft?"

If your clients are pointed to Microsoft<<Then they get it from Microsoft

If they are pointed to WSUS<< then they PULL from there.

Neither WSUS or Microsoft push any updates. Windows update/WSUS is a PULL TECHNOLOGY  
 
Clients query for their applicable updates, they do not get pushed to them.
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DonNetwork AdministratorCommented:
"We have not updated our WSUS server according to http://support.microsoft.com/kb/2720211KB."



As I have said in your other questions.......UPDATE, UPDATE...UPDATE!!!!!!!!!!!!!!!!!!!!!!!!!
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DonNetwork AdministratorCommented:
^^Cant comprehend why you wont do so^^
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Making Bulk Changes to Active Directory

Watch this video to see how easy it is to make mass changes to Active Directory from an external text file without using complicated scripts.

 
Prashant GirennavarAuthor Commented:
You are right!!!!!!.

 I want to understand , how only these 4 servers have got the upated version of 7.6.7600.256?

 You have helped me to downgrade the agent , which resolved my issues. (Thanks for that).

 I need to understand , how this WU Agent is getting pushed to the client system?

Thanks,

_Prashant_
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David Johnson, CD, MVPOwnerCommented:
Anything that uses windows update services MUST be updated (this is NOT optional) or recommended update.  

Due to a security flaw that exposed microsoft update, microsoft changed things to fix the flaw (key signing flaw) that was being exploited in the wild.
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Prashant GirennavarAuthor Commented:
ah....

 I am sorry. Still I did not get , What I am looking.

 Basic question is,

  How the WU Agent gets updated on client systems ? From WSUS server or from Microsoft?

 If from WSUS server why few of my nodes are having latest version as I have not updated my WSUS server?

Thanks,

_Prashant_
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Prashant GirennavarAuthor Commented:
Excellent!!!!!!!

This was what I was looking for.

 I think , these client browsed to windows update site and got the updated agent.

Thanks,

_Prashant_
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