M122 causes DWC to crash
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I have Duet2Ethernet running 2.05_1 firmware and 3.1.1 DWC.
When I send a M122 via DWC console the web site stops responding (err_connection_refused) in both Firefox (stable newest update) and Vivaldi.
There are no arguments to the M122
The only way to return function is walking over and power cycle the printer.
The printer otherwise works fine. I was adding this to my end gcode to monitor for problems.
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Are you sure that you didn't mistake M122 with M112 in your gcode?
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@Schild0r yes, I have tried changing to M122 P1 and it doesn't crash but only gives the SD card info and complains about wanting a T parameter.
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Try an older version of DWC, for example 2.0.7, or 1.22.6.
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Use 2.0.7 with 2.05.1 as that is the DWC version provided in that release.