Unresponsive duet 3 6HC board

gsch1803

My board shows up as a USB serial device in device manager. 3.3V an 5V LEDs are lit. status LED flashes at around 1Hz. USB light is solid. Ethernet light is solid yellow. This boar used to work through YAT and I had my whole printer set up working and then one day I powered this on and it no longer would connect to IP. I troubleshooted for hours before giving up and attempting to reflash the board. I followed all documentation and bossa appears to have successfully installed the firmware but I cannot even connect to the board with USB now. YAT will show connected but if I send a command that should illicit a response IE M552 there is no response. This continues for any command. Please help I have spent 8 hours (all work day) attempting to debug this thing so I can use my printer again and this is beyond frustrating.

Phaedrux

Have you seen this?
https://docs.duet3d.com/en/User_manual/Troubleshooting/Duet_wont_respond

Please try erasing and reflashing the firmware once more, make sure you go through all the steps shown here.
https://docs.duet3d.com/en/User_manual/RepRapFirmware/Updating_firmware#all-other-duet-boards

gsch1803

@Phaedrux This was very helpful, thank you! I can connect to the board using USB again. I am having significant issues with getting connected to the web interface though as I can't get any signal through the ethernet port. Here is a summary of my troubleshooting:

The board is powered with 24V and responds to commands sent via USB using YAT. Despite configuring the network settings and connecting the board to both a router and directly to a PC, the Ethernet connection remains unresponsive. Notably, the Ethernet port's LED on the Duet board displays a solid yellow light.

Troubleshooting Steps Undertaken:

Checked Duet Network Configuration:

Executed the M552 command and confirmed that Ethernet is enabled with IP 192.168.2.1.
Set the PC’s IPv4 address to 192.168.2.10, ensuring both devices are on the same subnet.
Verified that the M553 command shows the netmask as 255.255.255.0.
Checked Ethernet Connection on PC:

Verified that the Ethernet port on the PC functions correctly by successfully connecting it to a router.
Attempted to detect the Duet board on another computer but observed no network activity.
Tested Direct and Router Connections:

Connected both the Duet and the PC directly via Ethernet—no connection detected.
Connected both the Duet and PC to a router—while the PC's Ethernet port LED lit up on the router, there was no LED activity corresponding to the Duet’s connection.

Verified Network Adapter on PC:

Checked the PC’s network adapter settings and confirmed that the Duet’s Ethernet connection does not appear as a connected device.
Ruled out potential software interferences such as firewalls or VPNs.

Any idea what I should do here? I have now spent many hours attempting to debug this ethernet connection bug.

dc42

@gsch1803 here are a few things to try:

Send M552 from Yat and see what the response is
Send M122 from Yat. See what it reports for Interface state in the Ethernet section near the end.
Run ping 192.168.2.1 on the PC.

droftarts

@gsch1803 are you setting a static IP address with M552? Have you tried a different Ethernet cable to the Duet, or checked the one you’re using with another device?

Ian

gsch1803

@dc42 Thank you for the response, when I send M552 I get:
M552
Ethernet is enabled, configured IP address: 192.168.2.1, actual IP address: 192.168.2.1
ok
I will try sending M122 when I get a chance to work with the board again. When I would attempt pinging the board I wouldn't get any response.

It seems that there is no communication going through the cable whatsoever. I have tried using the cable else where and confirmed that it does function though.

gsch1803

@droftarts Thank you for getting back to me. The static IP is set in the config file and verified via the M552 command. I have tried a couple ethernet cables with no luck and confirmed they work with other devices.

Phaedrux

Have you followed this when trying to do a direct Duet to PC connection?

https://docs.duet3d.com/en/User_manual/Machine_configuration/Networking#wired-direct-connection

gsch1803

@Phaedrux Hi, thanks for the reply. Yes I followed that guide to get the board setup initially but since these connection issues have started this sort of approach no longer works. Computers won't even recognize a device has been connected when the duet ethernet is plugged in.

Phaedrux

When and where did you purchase the Duet?

gsch1803

@Phaedrux I believe it was purchased from Amazon in October

jay_s_uk

@gsch1803 what colour is the PCB?

gsch1803

@jay_s_uk Dark blue

Phaedrux

@gsch1803 said in Unresponsive duet 3 6HC board:

@Phaedrux I believe it was purchased from Amazon in October

Who is the amazon seller?