I have four DSP-W215 plugs (firmware ver. 1.26) and all of them them stopped to work about 4 months ago. After turning on they work about a day and after that it becomes impossible to switch them on/off via the app. WiFi is 100% on, LED is green. I can even see their statuses via app. But when I try to switch them on/off it hangs for a while and nothing happens. Google home also doesn't work. If I unplug DSP-W215 from power outlet and plug it again it starts to work and works about a day again. Behavior absolutely the same for all 4 plugs.
Customer support refused to help because support period is over.
Did anybody else face the same issue? Any solution?