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511 Network Authentication Required

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The HTTP 511 Network Authentication Required server error response status code indicates that the client needs to authenticate to gain network access; it is not generated by origin servers , but intercepting proxies that control access to a network1.

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References

  1. MDN. “511 Network Authentication Required”. Available at: https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Status/511 . (Accessed: [2025-05-23 Fri 00:36]). ↩︎

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