Kasa bulb is not connectig to  the wifi, it shows on the app as offline. I have tried a soft rest, the bulb flashes 3 times; I have tried a hard rest, the bulb flashes 5 times; I have tried re-seting in a different socket; I have tried resetting the wifi on my smart phone. I have deleted and re-installed the app.

The bulb stays illuminated, but at evry stage 'clicking' on the bulb button on the app results in the dialogue box "Device Unreachable- Your device may be powered off or out of network range." We are in a small house and the bulb has worked well until a recent power cut.

Nothing works.

The smart plug is working through the app normally.