Yes /sys file is there.

I'm getting this M21 SDHC card mounted in slot 0, capacity 3.98Gb<LF>ok<LF>

Firmware Name: RepRapFirmware for Duet 2 WiFi/Ethernet
Firmware Electronics: Duet WiFi 1.02 or later
Firmware Version: 1.21 (2018-03-21)
WiFi Server Version: 1.21RC4(08b3)
Web Interface Version: 1.21.1

I've been able to connect to the board now through YAT and the Duet WebControl. Unfortunately when I connect through Web Control and go to System Editor, nothing is there

Now it's showing up as a Bossa Program Port. I'm so frustrated I don't know what to do.

I am building a custom CR10 clone from scratch and a few weeks ago I installed the firmware and was able to connect to the board with no issues. Now that I'm ready to start testing I can't get anything to connect. In the devise manager it says Unknown USB Devise (Devise Description Request Failed) and I get this message in the devise status, Windows has stopped this device because it has reported problems. (Code 43) A request for the USB device descriptor failed. I've tried uninstalling the devise but when I reinstall the drivers I see no change. I've tried different USB cables and ports with no change and at this point I have no idea what to do next.