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Fixing ERR_SSL_PROTOCOL_ERROR Certificate Issues - Fix Windows Security Login Loop Error: Step-by-Step-How to Resolve Windows Defender Network Error

Updated 2026-06-13 14:55:16windows-fixes
Fixing ERR_SSL_PROTOCOL_ERROR Certificate Issues - Fix Windows Security Login Loop Error: Step-by-Step-How to Resolve Windows Defender Network Error
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.

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