Unable to delete load balancers and associated resources which where created by Azure Lab Services

Gernot Baar 0 Reputation points
2026-05-20T11:39:02.97+00:00

Hi,

After deleting our Azure Lab, some dependent resources (Load Balancers, Virtual Network, and Public IPs) were not removed and remain in my resource group/subscription. The Load Balancers are associated with vmss-template resource outside our Tenant so we are unbale to dissociate these from the backend pool on these, we get 401 errors and we are asked to authenticate to a Tenant ID that is not ours.

Could someone from the Azure Lab team please assist in removing these resources which appear to be Azure managed backend related and out of our control to remove?

Thank you.

Azure Lab Services
Azure Lab Services

An Azure service that is used to set up labs for classrooms, trials, development and testing, and other scenarios.

0 comments

1 answer

Sort by: Oldest
Most helpful Newest Oldest
  1. Sedat SALMAN 14,455 Reputation points MVP
    2026-05-21T10:28:28.86+00:00

    This is likely a backend/platform cleanup issue rather than a permissions problem on your side.

    The Load Balancer backend pool is still linked to a Microsoft-managed vmss-template

    also you need to check followings

    Verify whether the resources were originally created by Azure Lab Services, AKS, or another managed service.

    Check hidden resources

    and inspect backend pool references (az network lb show -g <RG> -n <LB_NAME>)

    if backened references are not in your tenant you cannot delete you need to create a ticket for this one

    Was this answer helpful?

    1 person found this answer helpful.
    0 comments

Your answer

Answers can be marked as 'Accepted' by the question author and 'Recommended' by moderators, which helps users know the answer solved the author's problem.