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NS_E_NOT_CONNECTED
NS_E_NOT_CONNECTED: a Windows Media graph or network object was used before the required connection was established
NS_E_NOT_CONNECTED (0xC00D0BCB) identifies a specific Windows Media/platform boundary: a Windows Media graph or network object was used before the required connection was established. Keep this stage visible instead of collapsing it into a generic playback, network, or configuration failure.
Evidence to preserve
Record the exact object and method, graph/pin or session connection state, previous connect result, and any asynchronous disconnect immediately before the call.
Controlled verification
Establish or reacquire the required connection and repeat the identical method without rebuilding unrelated media state.
Technical references
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