zhizhu
Home / cloud-software / Fix Docker Compose Fails When Docker Daemon Not Running - Resolve Cloudflare 521 on Apache Server-Windows Defender 504 Error Fix Guide

Fix Docker Compose Fails When Docker Daemon Not Running - Resolve Cloudflare 521 on Apache Server-Windows Defender 504 Error Fix Guide

2026-06-13 13:36:40cloud-software
Fix Docker Compose Fails When Docker Daemon Not Running - Resolve Cloudflare 521 on Apache Server-Windows Defender 504 Error Fix Guide

Final checklist

  • Confirm that the same symptom is gone after a restart or refresh.
  • Keep the smallest working change and undo temporary diagnostic settings.