I have three Tp-link devices, two smart bulbs and the plug that's stopped responding. The bulbs (and the 12 other devices attached to my router) are working fine. I'm loath to start changing any...

My HS100 smart plug stopped being picked up by the Kasa app. I've reset it several times now and tried to add it to my devices but it never connects. It gets as far as my phone connecting to it, then...