Board: Duet 2 WiFi
I also have the DueX 0.11
When powered from the PSU, the WiFi module never turns on. I measured the voltage of the +3.3v using the X Stop +3.3v and the Z Stop GND.
I got a perfect 3.3v.
When I power the board with USB, the module is always able to be turned on and is functional.
The difference in voltage is that the USB voltage result is 3.306v.
When using the multi-meter, I left GND before I left the +3.3v pin while powered on from the PSU, and the Wi-Fi was then able to be turned on.
Any ideas on resolving this issue?