Thanks.I'm looking at 17.6.x code train for the new GRE features so will keep that in mind with POE devices.

I'm on the same line with upgrading to the latest and greatest as it's always bleeding edge. Issue is we are standardizing the IOS everywhere so looking at moving to 17.3.6 code.Cheers.Jon

Hi Leo, What's your load on these switches and stacked? Do you have any 9300s running 17.6.4 or 17.3.6  with the same results? Our deployment is moving away from 3650 edge to 9300 (all POE) around 100 already deployed with routing.