If your using the Cura slicer, in the profile settings there is a setting called “Build Volume Temperature” under Material, change this to a value of 0 stops the error message.

Seems to me that your currents to the stepper moters is too low which maybe causing missed steps ....
your settings--> M906 X300 Y300 Z300 E300 I30

I have a coreXY and my currents are set to 700 ma (duet 2 wifi with NEMA 17 17HS4401 steppers)

my settings --> M906 X700 Y700 Z700 E700 I30

@phaedrux Thank you for the info and the link, I'll check it out.

I have a Duet 2 Maestro board running on an Ender 3, I am thinking of adding another Z axis stepper motor and screw rod, I see that the control board has an additional plugin point so that I can run the existing and the new stepper motor in series.

In my config.g file I am supplying 600mA to the existing z axis stepper motor, If I add a second stepper motor in series will I need to increase the milliamps?

Yeah same here, we still have a bug I believe.

I would double check the ribbon cable connections as explained in the following thread ....

https://forum.duet3d.com/topic/7609/configuring-12864-lcd-on-maestro/67?_=1589567721607

Nice job with the display files, thanks for the hard work

I'm communicating with the Duet 2 Maestro over an Ethernet link connected to my router, I use a wireless laptop to connect to the DWC so stand alone I think is the answer your looking for.

I don't know what a single board computer is unless you mean the likes of a Raspberry pi which is not what I am using?

@dc42 said in Upgrading RR3 via DWC 2.0.7 to a later version of RR3 error:

accepted the invitation

I accept the invitation to upgrade then it goes through the upgrade process and only outputs the error messages in the console as it completes the process.

Every time I upgrade RR3 from a previous version of RR3 via DWC 2.0.7 (system\upload system files) I get the following error messages in the console although the upgrade is actually successful...

28/02/2020, 09:26:17 Error
Operation has been cancelled
28/02/2020, 09:26:17 M997 S0
Operation has been cancelled

running the M115 command after the upgrade via the console proves that the upgrade was a success but I don't understand what is causing the errors?

28/02/2020, 09:34:43 M115
FIRMWARE_NAME: RepRapFirmware for Duet 2 Maestro FIRMWARE_VERSION: 3.01-RC2 ELECTRONICS: Duet Maestro 1.0 FIRMWARE_DATE: 2020-02-18b1