What does HRESULT 0xC00D4277 (MF_E_NET_TOO_MANY_REDIRECTS) mean?

 
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MF_E_NET_REDIRECT_TO_PROXY MF_E_NET_TIMEOUT

MF_E_NET_TOO_MANY_REDIRECTS

MF_E_NET_TOO_MANY_REDIRECTS means the client followed redirects until it reached its safety limit. This usually exposes a loop between origin, CDN, reverse proxy, protocol rollover, or authentication gateway.

What to check

  • Capture every redirect target and compare host, scheme, path, and query string.
  • Check reverse-proxy and CDN rules for a loop between canonical and alternate endpoints.
  • Verify that authentication or proxy policy does not redirect unauthenticated clients back to the original URL.

Microsoft: Networking in Media Foundation

Microsoft: Implementing reverse proxy with Windows Media Services

RFC 9110: HTTP semantics


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