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I can not access acr service

Md Azimul Islam Sheblu 0 Reputation points
2026-05-21T06:37:47.4566667+00:00

I noticed it first in my ci/cd pipeline, and then also run acr related commands in azure cli, it also shows the error

User's image

User's image

now can anyone tell me issues? why this is happening?

Azure Container Registry
Azure Container Registry

An Azure service that provides a registry of Docker and Open Container Initiative images.

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  1. Himanshu Shekhar 6,420 Reputation points Microsoft External Staff Moderator
    2026-05-21T08:12:46.48+00:00

    Md Azimul Islam Sheblu - We would like to inform you of an ongoing service degradation affecting Azure Resource Manager (ARM) and Azure Container Registry (ACR).

    At present, customers in Southeast Asia and multiple other regions may experience:

    1. Increased error rates
    2. Request timeouts
    3. Intermittent failures (including 504 Gateway Timeout / Service Unavailable responses)

    Our engineering teams are actively investigating the issue and working on mitigation efforts to restore normal service as quickly as possible.

    We will continue to keep you informed as we receive further updates. In the meantime, we recommend retrying failed operations, as some requests may succeed intermittently.

    If you have any further queries, let me know. If the information is helpful, please click on Upvote and Accept Answer on it.

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  2. AI answer

    2026-05-21T06:38:10.04+00:00

    The errors indicate that the Azure Container Registry (ACR) resource provider (Microsoft.ContainerRegistry) isn’t responding to list/resolve operations. This is typically a platform-side or networking issue rather than an authentication or CLI problem.

    To narrow down and remediate:

    1. Check ACR service health from CLI
      Run the ACR health check to see if there’s a registry-side or connectivity issue: 
         az acr check-health --name <your-acr-name> --ignore-errors --yes
      If an issue is detected, review the error code and description in the output and map it to the guidance in the health check error reference.
    2. Verify general ACR access from your environment
      If az acr check-health fails with connectivity-type errors (for example, Could not connect to the registry login server or timeouts), troubleshoot network access:
      • Confirm that client firewalls or proxies allow outbound access to *.azurecr.io and Azure management endpoints.
      • If the registry uses private endpoints or restricted public network access, ensure the client (or CI/CD agent) is on a network that can reach the registry according to those rules.
      The ACR network troubleshooting guidance specifically calls out symptoms such as:
      • Could not connect to the registry login server
      • Timeouts when pushing/pulling images
      • Inability to manage the registry via CLI or portal
    3. Reproduce and capture the exact error
      From a machine with Azure CLI: 
         az acr list
   az acr show --name <your-acr-name>
      Then immediately run az acr check-health as above. Use the error code from check-health to follow the documented resolution steps.
    4. If the issue persists across subscriptions/regions
      Since the error is coming from the Microsoft.ContainerRegistry resource provider itself (not just a single registry), and if it reproduces from multiple machines and networks, this likely indicates a platform-side problem. In that case, open a support ticket with Azure Support and include:
      • The exact CLI commands and full error output
      • Correlation IDs (from CI/CD logs and CLI where available)
      • Output of az acr check-health

    These steps align with the documented initial troubleshooting flow for ACR access and authentication issues and help distinguish between client/network problems and service-side issues.

    References:

    AI-generated content may be incorrect. Read our transparency notes for more information.

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