Boot after power failure Asrock X370 Pro4 worked only for 2 months

[Pc_Jemp]

Dear all

As a mainboard I use an Asrock X370 Pro4. Quite happy with it.
I use my PC mainly remote. So what I did is I plugged my Pc AC Power Cable to a Smart Plug socket which can be switched on via internet.

I configured my bios setting such as the PC turns on after Powerloss.

This worked during 2 months without any problems. I always shut down my pc completely and turn off the power via the smart plug. When I activated the smart plug, my PC immediately turned on.

Suddenly, this is not working anymore.
I checked my Bios setting and the option is still ON for power loss recovery. I did a reset and activated the option again. However, the pc does not want to turn on when there is power. Only via the normal Start switch.

What is the problem?
Why did it worked for a certain time but now it isnt anymore?
What else can I check ?

Many thanks.

Regards

[PeterOz]

I always shut down my pc completely and turn off the power via the smart plug. When I activated the smart plug, my PC immediately turned on.

This does not make sense to me.
A shutdown is not a power loss.
Turn on the computer - leave on.
Turn off smart plug.
Turn computer back on.