config.g disappears

norwestie

My SD card is missing the file, although there is a config.txt. This is the 2nd time this has happened. I'm attempting to get my Kossel set up and the DWC can't connect to the board after working fine for weeks. The 1st time, I connected via USB and found it working and someone suggested copying my config.g from my computer to the SD card. That worked for a while. It happened again and I repeated the process but now I have no ethernet connectivity. All other LEDs are on. I tried copying the entire RRF file to a new SD card but that didn't help. Do I have a faulty board?

Phaedrux

Is the SD card the same one as last time, or did you replace it with a new one? If you have no replaced it yet, please do so.

Is the SD card blank on your PC?

We've seen SD card readers fail before, but that manifests as not being able to read the card, I've never seen it where it's erased the card. Though we have seen SD cards fail.

droftarts

@norwestie Can you take a look at this thread? https://forum.duet3d.com/topic/21652/deleting-config-g-file

Suggestions are that there is a factory test macro that you may inadvertently be pressing, WiFi environment problems, or Duet board SD card socket malfunction.

Ian

norwestie

@droftarts No macros. I haven't even started a print yet!

peter247

@norwestie I had the same problem once.
I was making changes to config.g when I had problem with my wifi , So it made a blank version of config.g while updating it and now it wouldn't connect to my router so I rebooted my duet 2 wifi which copied the config.g blank file to the config.g backup file.
So now I keep a copy of the config.g on my laptop !!!

Phaedrux

@phaedrux said in config.g disappears:

Is the SD card the same one as last time, or did you replace it with a new one? If you have no replaced it yet, please do so.

Is the SD card blank on your PC?

How bout these questions?

norwestie

@phaedrux I tried copying just the config.g from my computer to the SD card, which does show all the other files. When I still couldn't get the ethernet to work, I formatted a new card and copied all files from computer to new card. Still nothing. Then I connected board to my Mac via USB but it did not power nor show up in SerialTools. With external power, the 4 LEDs light up, the blinking red one as well but not the ethernet LEDs.

Phaedrux

Can you try working your way through here?
https://duet3d.dozuki.com/Wiki/What_to_do_if_your_Duet_won't_respond

How far can you get?

norwestie

@phaedrux I connected my MacBook Pro to the board, the two LEDs next to the USB, the red and green are illuminated, also the red blinking one near the corner is on. And I can connect with SerialTools. But no LEDs on the ethernet port.

Phaedrux

In serial tools are you able to send M552 S1 to enable networking? That might get you some action on the ethernet port.

norwestie

@phaedrux said in config.g disappears:

M552 S1

Yes, it did! I'll see if it works powered through VIN.

It does not work. I did:
Send M552 S0 to disable networking, then M552 S1 P0.0.0.0 to enable networking and have your router assign an IP address and it reported back good.

Connecting to DWC again with Mac and looking at System, there still is no config.g and I had copied it there an hour ago.
Again, reloaded config.g and it appears to be working, for now.

Phaedrux

It's strange that only config.g would be missing. I'd expect any card issue to make the whole thing unaccessible and DWC wouldn't work at all.

I would suggest getting a fresh SD card and copying your files over to that one and see if it holds out longer.

o_lampe

@norwestie
I remember, I edited my config.g on my PC and saved it. But it was named

config.g.txt

Had to rename it in a DOS shell (Mac is different) and then could use it on my printer.
IIRC DWC can also rename files with wrong file-type letters, just have to find it.

Michael Hathaway

I also had this happen recently on the Duet 3 mini 5+. I lost ethernet connection at the same time. I checked the sd card to make sure it was seated and loaded the config.g back on. If it happens again, I will pull the card, inspect closer and report back.

peter247

@phaedrux it is when you are editing config.g and you press save and it drops the connection while saving it and you get a blank config.g when it reboots.
It only happens to config.g because that is the only file you are editing , I guess it could blank any file you are editing ?.

jay_s_uk

@peter247 if it fails during the upload process you're typically left with a config.bak file, that can be renamed config.g

peter247

@jay_s_uk The problem is you can't connect back into my duet so you reboot it and the config.bak now automatically overwrites config.g , so now config.bak and config.g are both blank .

jay_s_uk

@peter247 yea, sd card removal is typically required. i'm surprised config.bak is being overwritten though as it only gets created by DWC when the existing config.g is editted. its not automatically created by the firmware on boot. but ultimately, always keep a backup of your files as sd cards aren't the most trustworthy devices

Michael Hathaway

@peter247 My machine was off for the night, but my duet interface was still open. When I turned the machine back on, there was no connection. When I finally regained connection, config.g was missing. I replaced the card just to be safe.

Phaedrux

@Tinken @peter247 What board are you using? Can you share a M122 as well?