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Change DHCP Failover shared secret password

Tonito Dux 956 Reputation points
2020-10-09T05:38:13.9+00:00

Hi,

we had our partner IT Company create DHCP Failover, but they entered a wrong shared secret password. How can I change this?

Cheers!

Windows DHCP
Windows DHCP
Windows: A family of Microsoft operating systems that run across personal computers, tablets, laptops, phones, internet of things devices, self-contained mixed reality headsets, large collaboration screens, and other devices.DHCP: Dynamic Host Configuration Protocol (DHCP). A communications protocol that lets network administrators manage centrally and automate the assignment of Internet Protocol (IP) addresses in an organization's network.
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  1. Leon Laude 85,686 Reputation points
    2020-10-09T06:19:34.437+00:00

    Hi @Tonito Dux ,

    To change the DHCP shared sercret, follow sthe steps below:

    On DHCP server, right click IPv4 > select Properties > Failover tab > click Edit > uncheck Enable Message Authentication > Check Enable Message Authentication > reset Shared Secret.

    31106-reset-dhcp-shared-secret.jpg

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    (If the reply was helpful please don't forget to upvote or accept as answer, thank you)

    Best regards,
    Leon

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  1. Tonito Dux 956 Reputation points
    2020-10-09T06:29:46.8+00:00

    Hi Leon,

    thank you. This is correct, however I get the message that "The DHCP Server service is not running on target computer". I have checked the services on both DCs/DHCPs and they are running?

    Cheers

  2. Candy Luo 12,666 Reputation points Microsoft Vendor
    2020-10-09T07:00:23.007+00:00

    Hi ,

    The Set-DhcpServerv4Failover cmdlet can modify the properties of an existing failover relationship. As the picture below:

    31183-image.png

    For more details about Set-DhcpServerv4Failover cmdlet, please refer to the following link:

    Set-DhcpServerv4Failover

    Best Regards,

    Candy

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  3. Tonito Dux 956 Reputation points
    2020-10-09T07:02:09.88+00:00

    Hi,

    I had to delete the failover configuration and set it up again. This was the only way. The MTU were correct. Anyways it is working now.ž

    Thank you for your help.

    Cheers!