Hi All. I have been using my Duet 2 ethernet for a few months and, all of the sudden when turning on my printer this morning (delta), the board would not respond. The LCD does not show any temperatures, any files on the SD card, nor will it connect via ethernet to my computer as it has countless times before.

Here is what I have tried:

• The entire steps of "What to do if your duet 2 won't respond"
• multiple USB cables (two I soldered myself, confirming pin continuity and resistance values w/ multimeter, multiple computers, Linux, Windows, OSX - no device showing up, although the LEDs on the board are lit as normal.
• Four different SD cards, all formatted in Fat32. Cards read fine on three different computers, the Duet 2 will not read them
• Checked all wiring multiple times. Confirmed ALL connections (yes, I am quite OCD w/ my multimeters)

Again, nothing in my setup has changed and it was working beautifully for several months. Using the smart effector in the setup.

Any ideas? Thanks!