@JeffC 

Are you running any sort of VPN connection on your phone?

Has it always been acting like this since day one?

By chance, do you have another smart phone to log into Kasa with to see if you get the same symptom?

Finally, what is the model and software version of your mobile phone?

@Tony 

VPN - no.

I was on ios 13.1.3 but installed 13.2.3 yesterday.

Kasa App behavior is same for both s/w versions: UPon inital install, app works fine but my devices eventually dissappear.

I just installed the devices and app and within 1-2 days before problem occurred.

My wife has installed the app on her phone running 13.1.3 with no problem

We both have iphone 6s.

Thanks for any help.

@JeffC 

So on your wifes phone the devices work normally and do not disappear, only on your phone this is happening?

@JeffC 

Same thing is happening on my iphone, was fine for two years and then last week I started having constant problems. 

@RopinC 

I have the same problem except the devices never show up.  They all still work at the times originally set, but I have no access to them to turn them off or on or change the settings. It is impossible to get through to support by any means that I have tried. CHAT does not respond at all, doesn't even connect.  come on guys!