Gen this as an arror message when my config file runs at startup on RRF3, Duet wifi, - any idea what it refers to?

I have a similar issue, getting "Warning: motor phase A may be disconnected reported by driver(s)" on all drive ports with what were working stepper motors. Only possible mistake i made is connect one stepper motor to 3 pins instead of 4 ie offset one pin. Would this cause all drivers to die?

Hi all,

Have been running my duet wifi board, updated with RRF3 successfully for a week. then unexpectedly it just stops.

current status:
Some LEDS light up, enstop LEDS switch on/off when triggered. Paneldue works but does not show warning messages from config.g file so I assume its not booting to that. Can type gcode into console but no effect.
No wifi connection to my network.
Have tried connecting to USB, windows computer can see USB device but says its not working. Correct driver installed and previously worked.
Tried erasing firmware, no change in symptoms.

Anything else I should try ?

Thanks