[DiapDealer]

There are several different models of the Kasa Mini smart plug. Are all of the ones having trouble the same model? I ask because I fought with some Kasa smart bulbs forever. They constantly lost their connection and had to be reset. I tried everything I knew (as one who is intimately familiar with network administration) to no avail. Turns out the KL-125s had a radio that was notoriously flaky. I replaced those three bulbs with KL-130s and never had another problem.

If all of your minis are the same model, make sure the firmware on the problematic ones is the same as the firmware on the ones that work. Use the Kasa app to update the firmware if the problematic ones aren't running the latest.

I have a mixture of Kasa HS103 and HS105 smart plugs and haven't noticed any real issues.