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How to Fix Git Detached HEAD in IntelliJ IDEA - How to Fix Update Error 0x80070002 from Network Problems-Fix Nginx Upstream Connection Refused in Proxy Pass

Updated 2026-07-28 14:03:15backup-recovery
How to Fix Git Detached HEAD in IntelliJ IDEA - How to Fix Update Error 0x80070002 from Network Problems-Fix Nginx Upstream Connection Refused in Proxy Pass
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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