I found the issue in the end, the configuration program was reporting 0GB storage, I removed the disc and popped the disc into a desktop caddie and disc checked out fine.

Opened the unit up and unplugged the SATA and power leads from the onboard caddie and plugged direct into the disc and started the unit up.

Once it had formatted the disc and come online the storage is now registered correctly and I can download Control:PC and Touch:PC.

So it looks like I have a dodgy caddie connector.

G68J, HD621, G98DH, DSP5000, DSP33C, 2x205s, KEF TDM 34DS, B&W PV1, SLS Ensemble,Control 10, Sony HW40ES, XboxONE S X.