@Bmilam said in Duet Wifi resetting part way through prints:
Last reset 00:17:36 ago, cause: power up
That bit (which is in all your M122 reports) indicates that the Duet reset because there was no power to the microcontroller. Possible reasons include:
PSU problem. Note, most 12v ATX PSUs need a dummy load on the 5V rail to prevent them form getting over-voltage on the 12V rail and resetting.
VIN terminal block screws on the Duet not tight
Something is shorting out or overloading the 5V or 3.3V rail of the Duet. A common cause is endstop switches that are connected to the wrong pins of the endstop connector.