I gave up on Kasa as well. I've spent way too much money on these plugs. I've used them in 3 different network configurations, even replacing one expensive router with another to see if that was the...

@Shavachiva try updating the firmware on your devices. I'm not 100% sure yet but this seems to have made a big difference for mine ... they haven't lost connection since applying the update 2 days...

@bschatzow have you updated firmware to the latest version for your particular devices? My HS103's had this same issue and it was driving me totally nuts. Finally saw a mention in this thread of...