Yep, Max out current and a voltage drop, what effect is that going to have on the Duet and or the PI.

@bearer Actually you can, I just don't know how to use it. https://github.com/codazoda/hub-ctrl.c/wiki/Raspberry-Pi

All USB port except for USB port 1, the power can be turned on or off.

@veti A PI USB port will power a Duet, Display and everything else attached to a Duet.

I'm more worried about excess current draw from the PI, even using the same power supply.

Can there be a power feedback between the two?

Is there a way to turn off the power on the USB ports of the Raspberry PI or is there a duet command to not except the power on the micro USB port, or it does not matter.

-40dbm it is 15 feet from the access point, Ubiquiti AC Pro.

"DC42" stated that this is caused by the use of the USB port, since I'm not using the USB port on startup. I believe it is the PanelDue that is triggering the message by using the serial comm of the Duet. It's just a guess. I see it on every powerup, I just can not get the wifi to connect on every powerup.

Would like to add that I'm using the 4-wire connection on the PanelDue. The "Conn_SD" is not connected to the PanelDue.

On the PanelDue console before the WiFi is connected.

Interesting, I do have a high powered heatbed, it is connected through a SSR. It is switched with the "Bed Heat" output. I have nothing connected to the USB port. Having a Duex conncected triggering the USB port?