Duet 2 Ethernet - no Ethernet after Firmware upgrade

droftarts

@xxexx Post a picture of the board powered by USB, and one another when powered from the PSU. Check the voltage LEDs are lit (first part of this page): https://docs.duet3d.com/User_manual/Troubleshooting/Duet_wont_respond

Ian

xxexx

@droftarts

xxexx

This post is deleted!

xxexx

@droftarts the DIAG LED (between the USB connector and the SD card socket) lits up only for a split second when power supply is turned on (as it should be according to documentation).

droftarts

@xxexx I can't see anything obviously wrong. 5V and 3.3V voltage regulators seem to be working. It's possible that the 5V regulator is failing, and not supplying enough voltage or current to run the Ethernet module, but that seems unlikely (I think the Ethernet module runs on 3.3V anyway). The main blade fuse (above the 2A fan fuse) looks like it might be burned? Can you take a picture of the area around the two voltage regulators, U2 and U3?

Ian

xxexx

@droftarts all 3 fuses are fine,

droftarts

@xxexx Is config.g being executed when powered from VIN? I don't know why it wouldn't be, and can't think of a way of checking without plugging in USB. You can connect USB under VIN power; you just need to take some precautions. See https://docs.duet3d.com/User_manual/Overview/USB_ground_loops
What firmware version were you on previously? Maybe rerun the update, or try reverting to the previous version you were using. Though I can't think why the firmware version would be causing this issue.

Ian

xxexx

@droftarts

droftarts

@xxexx I think the voltage regulators look okay. How old is this board? Where did you buy it from?

Ian

xxexx

@droftarts

i checked the system directory: it is empty (!). I now try to install the Duet2combinedfirmware .bin file - "Connection lost, attempting to reconnect..."

jay_s_uk

@xxexx sounds like the sd card has been wiped then. maybe try a different sd card

xxexx

@jay_s_uk

i now did copy all installation files on the SD Card again and the bboard did reboot and reinstall firmware when connected to USB Power.

but ths Sytem directoty shows only:

jay_s_uk

@xxexx thats incorrect. whats in sys on the SD card?

xxexx

@jay_s_uk

jay_s_uk

@xxexx then you need to put all your config files back. hopefully you've got a backup otherwise use the configurator to generate a base set of files

xxexx

@jay_s_uk

xxexx

@jay_s_uk

oh fuck me, i dont have a backup and it took me days to get everything right incl. the bltouch - i guess i just learned to make backups...

Any way, thanks a lot for your help, id did not occur to me to check the SD Card