The 2D/2M views in the controller seem to mess up the device counter, Either that or someone’s been taking a hacksaw to devices
Yes, noticed this as well. I think this is because it is an average number of connected devices during the selected period (2 days and 2 months).
Yes these are average values, or some of the APs have lost some weight 
We can add a tooltip to explain how the values are calculated a little more clearly, or round up to the nearest whole number if you think users will be confused?
Probably best to round it, you don’t get 0.7 of a device so it just doesn’t make sense.