You all can log in the same kasa account and control the device. Or you disable the remote control function, then when other users in the same network with the smart devices , they can find and...

Maybe router's settings block the flow to internet. Have better disbale the firewall on router to see.

Does the lamp exceed the power of plug?

Sorry not expressd accurately. What I mean is to change the time zone of Kasa account to what you want.

Did you try to use Arlo security camera trigger another brand device or other function provided by IFTTT? If only failed to trigger kasa device, just contact with tp-link support team.

I have never counted the number of on/off.......does this make any difference?