Maybe it's compatibility issue? Suggest you contact the tplink support, email them, to figure it out.

Yours 16**** seems newer. It's hard to say which is more stable. Usually newer firmware would have some bugs fixed and new feature added which can be found from the note of each firmware on the...

Do you have a D9 and D7? If you don't hook up D7, it seems impossible that the admin interface will display D7.

HS110 can only be action in IFTTT. You need a device that supports IFTTT and can act as trigger to create applet to turn on the HS110 once it's triggered. I think you need to explore iCal or AirBnB.

Hi, it's suggested to email the TP-LINK support: support@tp-link.com

Can you manually turn the lamp on/off via the echo app? Make sure you are not using house hold account when you voice control it. Pay attention to the device name of the lamp. You should say the...