@Hank21 I have managed to resolve this. I factory reset and re-provisioned the two APs. Once these were adopted again they have been stable ever since with no reports of disconnections.

@Amoanster Thanks for the reply. I will check this and report back.

I have a total of seven EAP650s (x4 ceiling and x3 Outdoor) across a clients site and out of these there are two EAP650-Outdoor APs that regularly report "[EAP name] was connected". Some points re...