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Home / developer-tools / Fix Command Prompt Sync Issues: Practical Steps - WireGuard Handshake Not Completing? Check Firewall-EACCES Error npm: Step-by-Step Fix

Fix Command Prompt Sync Issues: Practical Steps - WireGuard Handshake Not Completing? Check Firewall-EACCES Error npm: Step-by-Step Fix

2026-06-16 23:00:08developer-tools
Fix Command Prompt Sync Issues: Practical Steps - WireGuard Handshake Not Completing? Check Firewall-EACCES Error npm: Step-by-Step Fix

Final checklist

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