What has happened with these devices? I have two, which have been operating flawlessly for months. My home wired/WiFi network is exactly the same and has not changed in months, either (and it's a modern TP-Link high end res router!). But about 3 days ago - all hell broke loose. I've factory reset devices. I've re-installed the Kasa app on my phone. I've checked and updated firmware. I've logged out and logged back in to every account. And while I do have Alexa, this has nothing to do with Alexa:
At this point, evern after a full factory reset, checking firmware, etc. etc. etc. etc. etc, I cannot get the HS105's on my home network. The Kasa app will see them for a short period on the private/temporary TP-Link WiFi, but when it prompts me to join my own WiFi, it all goes wrong.
And this is on two different devices - both work exactly the same - or I should say, don't work at all. Actually - not true - their hard buttons do turn the power on and off!