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Fixing Nginx Upstream Connection Refused in Load Balancing - ERR_NAME_NOT_RESOLVED on Chrome for Mac: How to Fix-Fix Docker 'network not found' Error for Custom Networks

Updated 2026-07-28 21:35:12windows-fixes
Fixing Nginx Upstream Connection Refused in Load Balancing - ERR_NAME_NOT_RESOLVED on Chrome for Mac: How to Fix-Fix Docker 'network not found' Error for Custom Networks
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.

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