Very high power values from trainer

[schoemanjason]

I have recently purchased a Elite Zumo trainer and both in Zwift and trainer road the trainer report very high power values 300-400 watts when my PM is reporting 150. In both apps the ability to perform a roll down isn't their but I can complete it using the desktop Elite app but this doesn't help the problem.

Using power match I can get realistic power numbers in Zwift, but the magnitude of the difference means the ride quality is rubbish.