| Previous | Next |
| NS_E_CANT_READ_DIGITAL | NS_E_DEVICE_NOT_SUPPORT_FORMAT |
NS_E_DEVICE_DISCONNECTED
Where this result occurs in the Player workflow
NS_E_DEVICE_DISCONNECTED (0xC00D0FA2) marks using a portable-device object after its physical connection was removed. Preserve that boundary even when the visible Player message is broader than the producing operation.
Mechanism
At the checkpoint, windows Media Device Manager brokers between the Player, a device service provider and MTP, mass-storage or legacy device transports; Enumeration, Plug and Play identity, storage availability, format support and individual file operations are distinct checks. The page-specific boundary is using a portable-device object after its physical connection was removed.
A device shown in Explorer can still disappear from the Player’s WMDM session or reject a media format, filename, directory operation or storage request. A representative way to reach this result is that the cable is removed while a queued sync item still holds the old interface.
State snapshot
| Evidence | Why it matters for device disconnected |
|---|---|
| Producing object and operation | PnP instance and interface path, WMDM service-provider CLSID, device/partnership ID, connection generation, storage object and capacity, format-support result, firmware version, operation callback and first device or transport HRESULT |
| Decisive observation | PnP removal event, device instance ID, connection generation and outstanding operation |
| Generation identity | Record the same disc, device, job or Player operation generation that returned this result; a reconnect or media change creates a different test. |
| Underlying result | Keep the first device, filesystem, COM, codec, DirectShow, IMAPI or BITS result seen before the Player mapped it to this result. |
| Controlled comparison | Repeat the producing call after changing only this condition: reconnect and re-enumerate the device before resuming with a new object. |
How to interpret the next test
| Observation | Interpretation |
|---|---|
| The recorded values match the boundary | The result is consistent with using a portable-device object after its physical connection was removed; correct that state before changing unrelated codecs, drivers or playlists. |
| A lower layer failed before this result | Preserve that earlier HRESULT or device result because it may be only the Player-level mapping. |
| The same call passes after one isolated change | The comparison supports the device disconnected diagnosis rather than a broad installation failure. |
| The code changes after retesting it | The boundary was passed; diagnose the new HRESULT as the next independent stage. |
It scopes the failure to using a portable-device object after its physical connection was removed.
Controlled diagnostic sequence
- Capture
0xC00D0FA2, it, the exact Player/API operation and the first timestamp at which it appears. - Save PnP removal event, device instance ID, connection generation and outstanding operation; do this before ejecting media, reconnecting a device, canceling a job or rebuilding the Player object.
- correlate the result with PnP instance and interface path, WMDM service-provider CLSID, device/partnership ID, connection generation, storage object and capacity, format-support result, firmware version, operation callback and first device or transport HRESULT.
- Reproduce once with the original source and destination, then apply only this change: reconnect and re-enumerate the device before resuming with a new object.
- Create a fresh operation generation and verify that the original call advances beyond the device disconnected boundary.
Nearby codes with different owners
| Related result | Different diagnostic boundary |
|---|---|
NS_E_DEVICE_NOT_SUPPORT_FORMAT | checking whether the device advertises support for the item’s media format |
NS_E_DEVICE_IS_NOT_READY | opening device storage before the service provider reports a ready state |
NS_E_PDA_UNSUPPORTED_FORMAT | validating a portable-device operation against the object’s format |
Focused correction
For this occurrence, reconnect and re-enumerate the device before resuming with a new object. Recreate only the object that produced it and repeat the original operation against the same controlled input.
When verifying it, do not assume the old interface pointer remains valid after reconnect; Re-enumerate the device and storage objects and correlate the failure with the same connection generation.
Technical references
- Windows Media Device Manager SDK.
- Enabling Plug and Play for WMDM devices.
- Portable-device capabilities and shell requirements.
- WMDM connection and storage notifications.
Looking for a different code? Search another status or error code.