SCCM client not downloading from Distribution Point

PaulLG 25 Reputation points
2023-06-09T13:38:42.3866667+00:00

We have Win10 1809 LTSB machines that are discovering valid URLs for software updates on the SCCM Distribution Point:
User's image

But trying to download them from an invalid WSUS URL over port 8530 instead of calling the DP URL:User's image

All other machines in the domain are successfully downloading updates from the DP. Uninstalling and re-installing the CCM client does not resolve the issue.

Would welcome any suggestions to explain or fix this behaviour.

Thanks!

Microsoft Configuration Manager
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  1. Simon Ren-MSFT 30,116 Reputation points Microsoft Vendor
    2023-06-22T02:46:02.12+00:00

    Hi @PaulG ,

    This was resolved by setting 'Allow clients to download delta content when the option is available' to 'No' in the Client Settings.

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    Sorry, due to Q&A forum restrictions, OP cannot accept their own replies as answers. I quote your solution here; you can accept this as answer to help other users who have same issue.

    Thanks again for your feedback and sharing. Have a nice day!

    Best regards,

    Simon

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  1. Youssef Saad 3,401 Reputation points
    2023-06-09T19:46:55.5533333+00:00

    Hello PaulLG,

    The SCCM client & the Windows Update agent synchronize with the SUP then check the software updates compliance to report to the console which updates are installed/required etc.

    The DP is used only to download the content.

    If your SUP is fine and the software updates deployment is OK for other OS, I would suggest to you to start your troubleshooting from the client side with checking the following log files:

    • WUAHandler.log
    • UpdatesHandler.log
    • UpdatesStore.log
    • CAS.log
    • UpdatesDeployment.log

    Regards,

    Youssef Saad | Blog: https://youssef-saad.blogspot.com/ | LinkedIn

    1 person found this answer helpful.
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  2. PaulLG 25 Reputation points
    2023-06-20T13:55:35.4966667+00:00

    This was resolved by setting 'Allow clients to download delta content when the option is available' to 'No' in the Client Settings.

    1 person found this answer helpful.
  3. PaulLG 25 Reputation points
    2023-06-12T12:24:39.5333333+00:00

    Thanks for the suggestions Youssef.

    I agree that the issue is most likely at the client side, however I cannot see anything in the client logs other than the DP content location being discovered in CAS.log as shown in my first post. The CCM client logs have no mention of WSUS content locations for the updates.

    I only know that these clients are requesting content from WSUS from performing a network trace. The clients make no attempt to download from the DP.

    It would appear that something is overriding the content location as discovered in CAS.log

    Thanks,

    Paul

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  4. Youssef Saad 3,401 Reputation points
    2023-06-12T14:35:06.75+00:00

    In LocationServices.log, is the client getting the SUP entry correctly with 8530 port? What is the status of your ConfigMgr components under Monitoring node (console)?

    Are you able to deploy an application in this machine? Just to confirm that your DP is OK and it's only about software updates depl.

    Regards,

    Youssef Saad | Blog: https://youssef-saad.blogspot.com/ | LinkedIn