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Fix SSH Host Key Verification Failed for GitHub - How to Fix 504 Gateway Timeout in Windows Terminal-How to Recover from a Black Screen After Windows Update

2026-06-14 01:43:45windows-fixes
Fix SSH Host Key Verification Failed for GitHub - How to Fix 504 Gateway Timeout in Windows Terminal-How to Recover from a Black Screen After Windows Update

Final checklist

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