Why does transfer fail in Manager Express with the message “Error, mount failed” in the player status bar? IAdea Support Updated September 21, 2016 21:22 Follow Confirm that a CF card is inserted If CF card is present, remove and re-insert the card. Make sure the card is formatted in FAT32 Related articles When I click scan for players, nothing is found. But adding IP manually works. Why? Comments 0 comments Article is closed for comments.