| Previous | Next |
| NS_I_STOP_CUB | NS_I_KILL_CONNECTION |
NS_I_KILL_USERSESSION
NS_I_KILL_USERSESSION — 0x400D005D
Treat this code as a record of forced user-session termination: in the operation that returned it, an administrator aborted a specific streaming session rather than allowing normal client disconnect or server timeout.
Start at the returning layer
Windows Media Services distinguishes client sessions, lower-level connection objects, publishing points, and streams. In the context of forced user-session termination, session and connection identifiers are short-lived, and management actions must be correlated to the exact server instance and enumeration snapshot. Locate the first component that changes state and distinguish later summary errors.
Important distinction. A killed session is not evidence that the client was malicious or that the underlying stream is invalid; it records an explicit administrative action.
Minimum useful evidence
- Administrator source, session ID, client address, publishing point, stream, and start time
- Reason for termination and any authentication or policy event tied to the session
- Server response sent to the client and resource counters released afterward
- Whether the session reappears under a new identifier
Separate state from data
- Terminate a controlled client session and correlate the exact session ID across logs.
- Compare manual termination with configured inactivity timeout. Keep media bytes, server identity, and unrelated publishing-point settings fixed.
- Verify that terminating one session does not close other sessions on the same client address. Use a disposable publishing point or maintenance window when the test can alter server or storage state.
Do not use repeated reconnects as the main test; a later success can belong to a new session, publishing-point generation, server owner, completed background operation, or different media path.
Nearby states and false leads
| Observed comparison | Interpretation |
|---|---|
| A known-good object succeeds through the same component | The platform path exists; concentrate on the production object, identity, metadata, or state captured above. |
| The control fails at the same first operation | Preserve server, storage, plug-in, topology, and network evidence before modifying media or publishing-point data. |
| The status changes after one deliberate adjustment | The failure point changed; the replacement status now describes the next contract to investigate. |
Verification after correction
Correction: Fix erroneous policy or automation that targets legitimate sessions, or document the security/operations reason when termination is intentional.
Accept the repair only when only the selected session closes, its resources are released, and any reconnect follows the configured authorization policy.
Technical references
These sources describe the API, service architecture, and status values relevant to this diagnosis: Check version-specific behavior against the Windows Media Services and SDK generation that produced the event.
- Microsoft Open Specifications: HRESULT values — defines the formal status.
- Microsoft: Windows Media Services 9 Series SDK — documents the relevant API or lifecycle.
- Microsoft: programming the Windows Media server object model — provides the architecture, format, or protocol context.
- Microsoft Open Specifications: media streaming server scenario — supports the controlled verification criteria.
Looking for a different code? Search another status or error code.