Sony HAP - You Want to Delete Music Files But Do Not Know How; Deleting Music Files; Music Files Cannot Be Transferred Correctly; Common Music File Transfer Issues

The “MAC address filtering” function may be enabled on your router. Disable this
function.
[27] Dealing with problems
You want to delete music files but do not know how.
You can delete music files from the HDD AUDIO PLAYER using HAP Music
Transfer.
[28] Dealing with problems
Music files cannot be transferred correctly.
Transferred music files cannot be found on the HDD AUDIO PLAYER.
Music files cannot be transferred to the HDD AUDIO PLAYER.
The computer does not start transferring files even when the time set in the Transfer
Timer has elapsed.
Tracks belonging to the same album are registered to different albums.
Tracks belonging to different albums are registered to one album.