I'm certainly no expert, but it seems like you've tried most of the normal major things to try to fix the problem. It seems like the way that you describe it, the problem may have something to do...

Well here we go again, it's Friday and Auto Off Smart Action isn't working again.

@JDTV Yep. Just checked mine and the "Auto off" smart action is working again. Apparently one wrong keystroke up there at TP-Link and these things start getting stupid. That's not very reassuring!

I just have straight switches (hs-200 and hs-220) that control lights and it isn't working for them. Also have some plugs (hs-105 and hs-103) on some things the also quit "Auto shut off". NONE of...

I am noticing the same thing here. I use the "Smart actions" timer to turn off some lights after 15 minutes. They were working fine up until a few days ago, now none of the 3 that I had set up work....

I would suggest getting an inexpensive voltmeter (Home Depot) so that you can check that your getting power to your new dimmer and have connected it properly. Be careful though if your not...