Power differences?

 I am using a Quarq power meter and Garmin 920xt head unit.  Riding a recently purchased (11/2016) Wahoo Kickr.  Seeing large power differences in the two (50-60 watts).  Have done the spin down several times and no change.  Hoping this is a common problem that I can figure out what is going on.  Help???

Hi Keith,

Have you checked for firmware upgrades on the Kickr/Quarq?

Should not be a really big difference: