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Fix Chrome ERR_TUNNEL_CONNECTION_FAILED When Using VPN - How to Unlock APT in Ubuntu: Fix Locked Package Manager-Windows Activation Token Expired After Hardware Change: Fix

Updated 2026-06-13 20:30:41cloud-software
Fix Chrome ERR_TUNNEL_CONNECTION_FAILED When Using VPN - How to Unlock APT in Ubuntu: Fix Locked Package Manager-Windows Activation Token Expired After Hardware Change: Fix
Likely symptom
Likely cause
Safe rollback

Verification route

  • Repeat the original action, not only a simplified test case.
  • Restart the app or reload the service after configuration changes.