@KeithReed Resetting the devices did it for me.

@KeithReed It wold not work with either. I did a plug/unplug of each affected device and they started working again. I'm guesssing ti was realted to the app upgrade and cache or some other artefact...

Since upgrading the Kasa app to 2.18.0 Build 900, I can no longer communicate with my outdoor plugs. When trying to set a schedule I get "Failed to resolve command." When I try manually the error I...