TP-Link Switches going "Unavailable"

[CaptTom (Tom)]

Before doing any firmware updates, especially for UK or EU hardware, you might want to check this thread:

TP-Link HS110 Smart Plug disappears after latest firmware update

I was having problems with this plug giving occasional spurious power readings, so I checked for a firmware update on the app. There was an update to 1.1.0 available so I installed it. It seemed to install OK, and the device reappeared in the app. However, it’s no longer available in HA. I tried removing the integration and re-installing it, but it still doesn’t find it. I haven’t tried intalling the integration manually as I don’t want to reboot my system.