Well, I have followed the instructions on the page.

First, I deleted the firmware and actually, immediately finds the PC a device (Bossa program port). So far so good!
Then I picked out the right firmware (Duet2CombinedFirmware.bin) and burned it with "BOSSA 1.9.1" on the board. But once the firmware has been flashed, the PC does not recognize a device again ...

So what next?

Thank you for the tip!
I will try it next week!

Hi guys,

I have a problem with my Duet WiFi.
At the moment I have a printer in maintenance from the work, which I should equip with the Duet Wifi.

So far so good. Now I'm on the stand, everything works great and I just have to play around with the slicer settings.
The printer has also been running smoothly for a few weeks!

But suddenly I wanted to start the printer one morning and noticed that this is not logging into my WLAN. Since I have no display, so operate exclusively on the web interface, I get no feedback of course.
So I went and wanted to connect the board directly via USB to the laptop. But there is no reaction. The PC does not even notice that a USB device has been connected ...

What could be the problem? What can I do?
I measured the voltage. The 3.3V and 5V supply seems to be guaranteed. Also I have been able to measure the oscilator that outputs the 12MHz ...

I would be very grateful if you could help me!

best regards
Andreas