I've seen this "low power mode" for a long time now.  We have Aruba switches and I've tried various things on the switch end to try and resolve.  The only fix I've had success with is physically unplugging cable from switch and plugging back in.  Sounds dumb but it works every time (same port).  Reboot AP doesn't fix, nor does disable/enable PoE.  Really weird, on the switch end it has the correct power class and power utilization.  For whatever reason, the dashboard claims low power mode.  Glad its acknowledged by Meraki as a bug.  ... View more