Fix 'ffmpeg command not found' in Docker Container - Fix Chrome 504 Gateway Timeout After Update-Remote Desktop VPN Connection Troubleshooting

Updated 2026-06-14 00:24:47browser-issues
Fix 'ffmpeg command not found' in Docker Container - Fix Chrome 504 Gateway Timeout After Update-Remote Desktop VPN Connection Troubleshooting
Before changing system settings, save your work and note the exact error text so you can compare results after each step.

Extra verification checklist

  • Restart the affected app after changing permissions or configuration files.
  • Test the same workflow in a clean browser profile or a temporary user account.
  • Compare the result on another network if the error may be connection related.