Hello @tranceFusion 

To help exclude the issue, please remove some settings on kasa app besides Schedule: Away Mode/ Scene/ Smart Action and see device turn on again. 

Do you use any other smart third-party software to control device other Kasa app, if so unbind them while test. 

May I know do the HS103 and 105 turns on at the same time,  at regular time or random time? Did you recently add any new device in your home network, thank you

Hello@tranceFusion 

Sorry for the late update, if both devices turn on at a certain time regularly,  this is quite uncommon.

I recommend doing a  factory reset with one plug reinstall it in the app, that will help clear all the settings on a plug. Only leave that plugged in and test it only. 

How to reset TP-Link Kasa smart switch and plug?

If still the same behaviour, may I know do you use any third-party smart software to control smart device, the model of router, the network topology (does plug connect to router directly or through extender) , thank you.