zhizhu
Home / browser-issues / Fix Chrome ERR_TUNNEL_CONNECTION_FAILED When Using VPN - SSH Host Key Verification Failed: Troubleshooting Checklist-504 Gateway Timeout Caused by Antivirus Conflict

Fix Chrome ERR_TUNNEL_CONNECTION_FAILED When Using VPN - SSH Host Key Verification Failed: Troubleshooting Checklist-504 Gateway Timeout Caused by Antivirus Conflict

Updated 2026-06-13 13:52:46browser-issues
Fix Chrome ERR_TUNNEL_CONNECTION_FAILED When Using VPN - SSH Host Key Verification Failed: Troubleshooting Checklist-504 Gateway Timeout Caused by Antivirus Conflict
Prepare
Execute
Validate
Document

Operational follow-up

  • Record the exact option, command, or setting that changed the result.
  • Keep a rollback note if the workflow affects shared files or team settings.

More workflow manuals

Fix Windows Defender Connection Timeout Error 0x80070422Git Clone Publickey Permission Denied After Adding SSH KeyWindows Security Error Checklist: Common FixesFix 'Cannot Open as Archive' Error for 7-Zip Password FilesFix Windows Defender Path Not Found Registry ErrorFix Windows Defender Antivirus Slowing Down Your PC