@AvacadoBob I ultimately discovered it was a security issue. Many smart home devices only play nice with WPA2 security. Any other setting results in erratic behavior. My system has been stable since...

@War_Eagle_RT This is too late to help you but maybe it will help others. Some devices do not play well with 160mhz band width. Set the 2.4/5ghz bands to use 80mhz bandwidth. It helped me, my Alexa...