KP115 works consistently with Kasa app but not with Tapo. Tapo will connect with the plug about 1 out of 5 tries. 
 

There is no network lag. I used Network Analyzer app as suggested, and 0 packets are lost with ping times <17ms.
 

I get the dreaded Unstable network message. 
 

Things I've tried:

- remove and re-add plug mutiple times

- reboot Linksys EA8300 REI-band router

Like I mentioned, Kasa app works just fine and consistently but I'm migrating to Tapo because I'm planning to purchase Tapo plugs.