The problem is now resolved on one of the 9500s. Earlier today, Bell support sent me one replacement 9500 which I installed last night and it seems that everything is working as it should - inlcuding sound from Netflix. I should also note that the replacement 9500 doesn't have the CRAVE app in the app menu. If CRAVE ever gets pushed to this 9500 and reappears in the app menu, I will not run it.