The status does not transition to PLAYING from the PREP state

If the status stays as PREP without transitioning to PLAYING, the following could be happening.

The server processing is not executed, so the updating of the internal status is not performed.

To output a sound, you must run the ADX server processing regularly.
Make sure that the server processing has been run normally without any errors.
-> Server Checking Processing Execution

Streaming has not finished loading.

When streaming is used, playback cannot start until the minimum amount of data required is loaded.
Check whether the data is loaded.
-> Check whether streaming is working