🟡 Medium   ⏱ 5–30 min  Last verified: 30 May 2026
Affected versions: Windows Server 2022

📖 ~1 min read

Table of contents
  1. Symptom & Impact
  2. Environment & Reproduction
  3. Root Cause Analysis
  4. Quick Triage
  5. Step-by-Step Diagnosis
  6. Solution — Primary Fix
  7. Solution — Alternative Approaches
  8. Verification & Acceptance Criteria
  9. Rollback Plan
  10. Prevention & Hardening
  11. Related Errors & Cross-Refs
  12. References & Further Reading

Symptom & Impact

WAC fails to list or manage containers, reducing operational visibility.

Environment & Reproduction

Appears when WAC extension versions mismatch host runtime or endpoint permissions.

Get-Service docker
Get-ItemProperty HKLM:SOFTWAREMicrosoftServerManagementGateway

Root Cause Analysis

Management API calls fail due extension incompatibility, auth, or service endpoint issues.

Quick Triage

Validate Docker daemon status and WAC gateway logs.

Get-WinEvent -LogName Microsoft-ServerManagementExperience -MaxEvents 50

Step-by-Step Diagnosis

Confirm extension versions and user role permissions.

docker info
Get-LocalGroupMember -Group docker-users
Illustrative mockup for windows-server-2022 — terminal_or_powershell
WAC container endpoint diagnostics — Illustrative mockup — Progressive Robot

Solution — Primary Fix

Update WAC extensions, restart gateway and Docker services, and reauthorize account.

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Restart-Service ServerManagementGateway
Restart-Service docker
Illustrative mockup for windows-server-2022 — event_or_log_viewer
WAC container endpoint remediation — Illustrative mockup — Progressive Robot

Solution — Alternative Approaches

Use direct CLI and remote PowerShell management until WAC endpoint stabilizes.

Enter-PSSession -ComputerName host01

Verification & Acceptance Criteria

WAC container pane lists images and containers without API errors.

docker ps -a

Rollback Plan

Rollback extension update and restore prior gateway config.

# Restore WAC gateway backup

Prevention & Hardening

Pin tested extension versions and monitor gateway health checks.

Get-Service ServerManagementGateway

Related: certificate trust warnings and browser reverse proxy header issues.

Related tutorial: View the step-by-step tutorial for Windows Server 2022.

View all Windows Server 2022 tutorials on the Tutorials Hub →

Browse all common problems & solutions on the Tutorials Hub.

References & Further Reading

Windows Admin Center and container extension lifecycle documentation.

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