Plugs which were accessible via Homey have become inaccessible in other parts of the house but remain accessible close to the router.
Kasa finds them OK.
They have static addresses.
Router shows them in DHCP client list
They can be pinged correctly - with very short response times
WiFi analyser shows very strong signal at the distant locations
but Homey does not control them.
I have repeatedly rebooted, re-paired the plugs (need to enter the IP address because H does not find it) and even re-registered them on Kasa.
I see that other people have had problems with these plugs but wonder whether the issue here is that when they are distant from the main router they have logged on to the extender and this is not passing the correct data back to the router/Homey. I have read that some extenders apply their own private NAT when they are cloned to use the same SSID as the router which they are extending.
I have not yet moved to Homey 2.0 because of the risk of losing direct voice input (on my other set up Alexa mishears invocations meaning the several flows have become unusuable). The network is 192.168.x with an x that is neither 0 nor 1. Everything else on the network functions as before.