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Fix Windows Security Proxy 504 Gateway Timeout Configuration - Resolve Microsoft Store Connection Refused Due to DNS-Resolve Microsoft Store Sign-In Loop Windows 11

2026-06-15 19:34:33
Fix Windows Security Proxy 504 Gateway Timeout Configuration - Resolve Microsoft Store Connection Refused Due to DNS-Resolve Microsoft Store Sign-In Loop Windows 11

Result check

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

Next references

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