What does HRESULT 0xC00D0014 (NS_E_NET_WRITE) mean?

NS_E_NET_WRITE

NS_E_NET_WRITE: the failing boundary

NS_E_NET_WRITE (0xC00D0014) means Error writing to the network. The important boundary is network write; do not replace this result with a broader “Windows Media failed” diagnosis.

What this result proves

This code proves that a write to the selected network transport failed after the transport path had been chosen. It does not, by itself, prove a codec, permissions, network, device, or media problem outside that boundary. Preserve the first lower-level result when one exists, because later Player or Encoder errors can hide the original cause.

Evidence and focused verification

Record bytes requested/completed, peer, protocol, and the first socket or transport error; distinguish a write failure from an earlier connect failure. Keep the media object, endpoint, profile, or device identity fixed while changing only that rejected precondition. A successful retest should pass this exact boundary; a different HRESULT from a later stage is new evidence, not recurrence of NS_E_NET_WRITE.

Technical references

• Winsock send.
• Microsoft Media Server protocol.