[Q] Syncing Music topic

Hi,

Can someone help ? - I'm loosing my mind

I've had a smartwatch 3 for about a week and had nothing but problems....

I'm trying to copy music to it so that I can listen to the music and leave my phone at home.....

Im using a galaxy s4 (4.4.2)with the smart watch 3 (5.0.2.
I've added music to google play and downloaded it fine to my phone (turned of all data connections and played it to make sure)
In play music I have located the "download to android wear" option and ticked this.

No matter what I do the music does not transfer to the watch !

I've tried this with play lists and albums.

The phone has been restored to factory defaults and so has the watch !

The reason I brought this was due to the fact it had GPS and in built music playing ! - ideal for running !

Can anyone advise ? - this thing is getting close to being sent back !