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Fixing Nginx Upstream Connection Refused on Port 443 - Fix Git Authentication Failed in VSCode-Fix Windows 11 WiFi with Internet but No Network Access

Updated 2026-07-28 10:15:56macos-help
Fixing Nginx Upstream Connection Refused on Port 443 - Fix Git Authentication Failed in VSCode-Fix Windows 11 WiFi with Internet but No Network Access
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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