@maface said in Card Power for Wifi:
I checked the internal jumper and it looks like it is in the proper 5v internal position.
Which Duet do you have? If it is a Duet 2 WiFi or Duet 2 Ethernet, the jumper must be present to enable the internal 5V supply. If it is a Duet 3 Mini then the jumper must be absent to enable the internal 5V supply.