Failed to add NIC in Load Balancer due to DifferentSkuLoadBalancersAndPublicIPAddressNotAllowed error

Yasmin, Fitri 266 Reputation points
2023-07-10T10:28:07.8133333+00:00

I have a public LB with Basic SKU. It has a frontend named "FrontendTemp" with IP Address Basic SKU as well.User's image

I have another public LB, but with Standard SKU. It has a frontend named "myFrontend" with IP Address Standard SKU as well.User's image

Then I try to add two NICs to the backend pool of the Standard LB.

User's image

It returns the following error. It seems a bit odd to me because I'm trying to add the NIC but the error showing the frontend associated with the Basic LB. How are the two even related? The basic LB has no backendpool or any other configuration.

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Azure Load Balancer
Azure Load Balancer
An Azure service that delivers high availability and network performance to applications.
421 questions
Accepted answer
  1. KapilAnanth-MSFT 39,461 Reputation points Microsoft Employee
    2023-07-11T15:08:17.1333333+00:00

    @Yasmin, Fitri

    Welcome to the Microsoft Q&A Platform. Thank you for reaching out & I hope you are doing well.

    I understand that you are facing issues while adding NICs to a Standard Load Balancer.

    At first, it appeared that

    • The NICs have a public IP attached to them and they are of Basic SKU
    • or
    • The NICs are in the backend Pool of the Basic Load Balancer

    You confirmed that neither of this is the case.

    Later, you were able to figure this out.

    • PrivateIpAllocationMethod of both NIC's ipconfig to was "dynamic"
    • Changing this to Static resolved the issue

    I understand the error message was quite ambiguous and was pointing to a different error.

    Sure, I shall take this up to the Product Team and create an Internal work item to get this resolved

    Kindly let us know if you need further assistance on this issue.

    Thanks,

    Kapil

    Please don’t forget to close the thread by clicking "Accept the answer" wherever the information provided helps you, as this can be beneficial to other community members.

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