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Fixing Postman Request Timeout and Connection Refused Errors - How to Start DNS Client Service in Windows-Clear Port Allocation Error in Defender Command Line

2026-06-17 10:04:50
Fixing Postman Request Timeout and Connection Refused Errors - How to Start DNS Client Service in Windows-Clear Port Allocation Error in Defender Command Line

Result check

  • Keep one change per test run so you know which step helped.
  • Undo temporary changes after the issue is confirmed.