Client is not getting correct site

Sergi Díaz Ruiz 145 Reputation points
2024-06-20T06:47:39.76+00:00

Morning all!!

Again I have problems with another client... I have been resolved the rest of issues with clients but this doesn't want install.

I need to know troubleshooting because I think is a network problem but ... We have the ports opened correctly:

User's image

Locationservices:

User's image

CcmMessaging:

User's image

The url to check cert's work correctly:

User's image

At registry I try to set manually the lookupmplist:

User's image

But always when I try to reinstall ccmsetup delete the value of key.

How can I troubleshoot this ?

Regards and TIA!!

Microsoft Configuration Manager
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  1. Sergi Díaz Ruiz 145 Reputation points
    2024-06-26T09:20:55.9166667+00:00

    Hi all!!!

    Ok I solve it. It's a problem with firewall of Windows and Firewalls behind VLAN with IPS.

    After we add the correct rules, client communicate correctly.

    Thanks to all !!

    1 person found this answer helpful.
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  2. Simon Ren-MSFT 35,311 Reputation points Microsoft Vendor
    2024-06-21T02:45:04.11+00:00

    Hi,

    Thank you for posting in Microsoft Q&A forum.

    1,May we know how many clients are facing this issue? Are they in the same subnet/VLAN?

    2,If possible, you can try to remove firewall/antivirus OR add recommended antivirus exclusions to have a try. Refer to:

    Recommended antivirus exclusions for Configuration Manager site servers, site systems, and clients

    3,For more information about troubleshooting, you can refer to below article:

    Troubleshooting SCCM ..Part I (Client Push Installation )

    Thanks for your time. Have a nice day!

    Best regards,

    Simon


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  3. Simon Ren-MSFT 35,311 Reputation points Microsoft Vendor
    2024-06-28T10:23:41.2366667+00:00

    Hi @Sergi Díaz Ruiz ,

    Thanks very much for your feedback and sharing. We're glad that the issue is gone now. It's appreciated that you could click "Accept Answer" to the helpful reply, this will help other users to search for useful information more quickly. Here's a short summary for the problem.

    Problem/Symptom:

    SCCM client can't find MPs and fail to install client agent.

    Solution/Workaround:

    It's a problem with firewall of Windows and Firewalls behind VLAN with IPS.

    After we add the correct rules, client communicate correctly.

    client install

    Thanks again for your time. Have a nice day!

    Best regards,

    Simon


    If the response is helpful, please click "Accept Answer" and upvote it.

    Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

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