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Fix Nginx Config Test Fails with 'upstream host not found' - Fix Slow Windows Defender After Update-Windows Update Cannot Connect to Server: Fixes

2026-06-13 13:43:50
Fix Nginx Config Test Fails with 'upstream host not found' - Fix Slow Windows Defender After Update-Windows Update Cannot Connect to Server: Fixes

Result check

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