Device went offline for no reason how to check device log?

One of my ceiling light went offline for no reason. Does anyone know is there any logs stored on the device which I can check?

Could you see if the lamp is still in your router’s DHCP list?

No, it’s not in the DHCP list anymore. I can only see my other ceiling light in the list.

power cycle that lamp and check if it could come back online in one minute.

I know I can power cycle the ceiling lamp and try to bring it back online. But why did it go offline in the first place? I want to check the device logs. Is there any logs in the device?

No, no device log on your side.

Ok. Never mind… I just restart and it connect back.