I have a 1.5 TB My book essential external HDD, which I generally have connected to my WD TV live.
A few days ago I connected it to my Mac book pro to download a couple of torrent files to it ( I use Transmission), and I would repeatedly get a message from Transmission that it does not have permission to write to the HDD.
The HDD has no protection, and so far I have been able to transfer whatever files I wanted to, over wifi, via the WD TV.
Nothing else I should do on the Mac side, it should simply work the way it’s set up. This is not the only external drive I use on the Mac, but this is the only one giving me trouble.
I have also updated the firmware to the last version, same thing…