Help! DWC Disconnects and Drops after extensive troubleshooting

alexd607

It seemed to improve for a time, but has since worsened.

DWC constantly disconnects now to the point that it's impossible to make changes in my config.g file without powering down and removing the SD card...

Any ideas or further troubleshooting tips would be greatly appreciated. What are my options for being able to print if I'm unable to restore DWC functionality?

dc42

Please confirm which versions of the main firmware, DuetWiFiServer, and Duet Web Control you are now running (as reported by Duet Web Control), and the WiFi signal strength reported by M122.

mwolter

@alexd607 WiFi can be a real pain. Not sure it's a network issue but it would be good to rule it out with a simple ping test while the issue is occurring. https://iihelp.iinet.net.au/How_to_run_a_ping_test

It would also be good to leave the ping test running to see what the packet loss is over time.

alexd607

@mwolter

I'll be sure to give this a try and report back with what I find! At this point, anything is worth a shot.

alexd607

@dc42 Here's what I get back when entering m122.

Here's what my console looks like:
dwc console.JPG

M122

=== Diagnostics ===
RepRapFirmware for Duet 2 WiFi/Ethernet version 2.04 running on Duet WiFi 1.02 or later
Board ID: 08DGM-9T6BU-FG3S0-7J1F6-3S06T-9A43F
Used output buffers: 3 of 24 (11 max)
=== RTOS ===
Static ram: 25680
Dynamic ram: 92808 of which 356 recycled
Exception stack ram used: 268
Never used ram: 11960
Tasks: NETWORK(ready,628) HEAT(blocked,1232) MAIN(running,3744) IDLE(ready,200)
Owned mutexes:
=== Platform ===
Last reset 00:00:14 ago, cause: software
Last software reset at 2019-12-04 09:23, reason: Heat task stuck, spinning module FilamentSensors, available RAM 11568 bytes (slot 1)
Software reset code 0x40ad HFSR 0x00000000 CFSR 0x00000000 ICSR 0x0041f80f BFAR 0xe000ed38 SP 0x20004a9c Task 0x4e49414d
Stack: 0044d38f 004451d6 6100f000 3f000000 00000000 00000000 00000000 3331bb4c 41880000 3e178897 3e1cd04f be09b238 3e3a3fd4 00000000 00000000 00000000 3f800000 3f800000 3f000000 20000010 20003258 20002b88 0044d38f
Error status: 0
Free file entries: 10
SD card 0 detected, interface speed: 20.0MBytes/sec
SD card longest block write time: 0.0ms, max retries 0
MCU temperature: min 28.5, current 29.1, max 29.2
Supply voltage: min 24.3, current 24.4, max 24.5, under voltage events: 0, over voltage events: 0, power good: yes
Driver 0: standstill, SG min/max not available
Driver 1: standstill, SG min/max not available
Driver 2: standstill, SG min/max not available
Driver 3: standstill, SG min/max not available
Driver 4: standstill, SG min/max not available
Date/time: 2019-12-04 09:23:41
Cache data hit count 38669759
Slowest loop: 1.17ms; fastest: 0.06ms
I2C nak errors 0, send timeouts 0, receive timeouts 0, finishTimeouts 0, resets 0
=== Move ===
Hiccups: 0, FreeDm: 160, MinFreeDm: 160, MaxWait: 0ms
Bed compensation in use: none, comp offset 0.000
=== DDARing ===
Scheduled moves: 0, completed moves: 0, StepErrors: 0, LaErrors: 0, Underruns: 0, 0
=== Heat ===
Bed heaters = 0 -1 -1 -1, chamberHeaters = -1 -1
Heater 2 is on, I-accum = 0.0
=== GCodes ===
Segments left: 0
Stack records: 1 allocated, 0 in use
Movement lock held by null
http is idle in state(s) 0
telnet is idle in state(s) 0
file is idle in state(s) 0
serial is idle in state(s) 0
aux is idle in state(s) 0
daemon is idle in state(s) 0
queue is idle in state(s) 0
autopause is idle in state(s) 0
Code queue is empty.
=== Network ===
Slowest loop: 39.88ms; fastest: 0.00ms
Responder states: HTTP(0) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0) Telnet(0)
HTTP sessions: 1 of 8

WiFi -
Network state is running
WiFi module is connected to access point
Failed messages: pending 0, notready 0, noresp 0
WiFi firmware version 1.23
WiFi MAC address 84:f3:eb:83:48:e5
WiFi Vcc 3.39, reset reason Power on
WiFi flash size 4194304, free heap 24384
WiFi IP address 192.168.1.151
WiFi signal strength -22dBm, reconnections 0, sleep mode modem
Socket states: 0 0 0 0 0 0 0 0

@mwolter I did the ping test several times, and they all came back successful with 0 packet loss.

droftarts

@alexd607 said in Help! DWC Disconnects and Drops after extensive troubleshooting:

Last software reset at 2019-12-04 09:23, reason: Heat task stuck, spinning module FilamentSensors, available RAM 11568 bytes (slot 1)

That's interesting. Are you having problems with the filament sensor? Is the wiring running close to stepper motors or PanelDue (if fitted)?

Ian

alexd607

@droftarts

I don't have a filament sensor or panel due fitted.

It's strange that that is what it's reporting considering the last reset was done by me via M112.

alexd607

Here's what my Config.g file looks like:

; General preferences
G90 ; Send absolute coordinates...
M83 ; ...but relative extruder moves

M669 K1 ; Select CoreXY mode

; Network
M550 P"HyperSpoob" ; Set machine name
M552 S1 ; Enable network
M587 S"Houseofnerd2" P"Nerdgasm2" ; Configure access point. You can delete this line once connected
M586 P0 S1 ; Enable HTTP
M586 P1 S1 ; Disable FTP
M586 P2 S0 ; Disable Telnet

; Drives
M569 P0 S1 ; Drive 0 goes forwards
M569 P1 S1 ; Drive 1 goes forwards
M569 P2 S1 ; Drive 2 goes forwards
M569 P3 S1 ; Drive 3 goes forwards
M569 P4 S1 ; Drive 4 goes forwards
M350 X16 Y16 Z16 E16 I1 ; Configure microstepping with interpolation
M92 X80.00 Y80.00 Z400.00 E402.91 ; Set steps per mm
M566 X900.00 Y900.00 Z30.00 E3000.00 ; Set maximum instantaneous speed changes (mm/min)
M201 X6000.00 Y6000.00 Z30.00 E8000.00 ; Set accelerations (mm/s^2)
M203 X15000.00 Y15000.00 Z300.00 E15000.00 ; Set maximum speeds (mm/min)
M906 X900.00 Y900.00 Z900.00 E900.00 I30 ; Set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout

; Axis Limits
M208 X50 Y50 Z0 S1 ; Set axis minima
M208 X380 Y400 Z500 S0 ; Set axis maxima

M584 X0 Y1 Z2:4 ; two Z motors connected to driver outputs Z and E1
M671 X-50:450 Y200:200 S5.0 ; leadscrews at left and right of X axis
M208 X50:380 Y50:400 ; X carriage moves from -5 to 205, Y bed goes from 0 to 200

; Endstops
M574 X1 Y1 S1 ; Set active high endstops

; Z-Probe
M574 Z1 S2 ; Set endstops controlled by probe
M307 H3 A-1 C-1 D-1 ; Disable heater on PWM channel for BLTouch
M307 H4 A-1 C-1 D-1 ; Disable heater on PWM channel for BLTouch
M558 P9 H5 F120 T9000 ; Set Z probe type to bltouch and the dive height + speeds
G31 P25 X27 Y-2 Z1.90 ; Set Z probe trigger value, offset and trigger height
M557 X100:380 Y100:380 S50 ; Define mesh grid

; Heaters
M307 H0 A173.6 C420.0 D6.9 B0 S1.00 ;M307 H0
; Heater 0 model: gain 173.6, time constant 420.0, dead time 6.9, max PWM 1.00, calibration voltage 24.3, mode PID, inverted no, frequency default
; Computed PID parameters for setpoint change: P62.3, I1.154, D302.3
; Computed PID parameters for load change: P62
M305 P0 T100000 B4138 R4700 ; Set thermistor + ADC parameters for heater 0
M143 H0 S120 ; Set temperature limit for heater 0 to 120C
M307 H2 A266.7 C116.4 D5.8 S1 ; M307 H2
; Heater 2 model: gain 266.7, time constant 116.4, dead time 5.8, max PWM 1.00, calibration voltage 24.1, mode PID, inverted no, frequency default
; Computed PID parameters for setpoint change: P13.4, I0.513, D54.6
; Computed PID parameters for load change: P13.
M305 P2 T100000 B4725 C7.060000e-8 R4700 X2 ; Set thermistor + ADC parameters for heater 1 and remap it to channel 2
M143 H2 S280 ; Set temperature limit for heater 1 to 280C

; Fans
M106 P0 S1 I0 F500 H-1 ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off
M106 P1 S0 I0 F500 H1 T45 ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned on

; Tools
M563 P0 S"Solo" D0 H2 ; Define tool 0
G10 P0 X0 Y0 Z0 ; Set tool 0 axis offsets
G10 P0 R0 S0 ; Set initial tool 0 active and standby temperatures to 0C

; Automatic power saving
M911 S10 R11 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" ; Set voltage thresholds and actions to run on power loss

; Custom settings are not configured

; Miscellaneous
T0 ; Select first tool

Danal

Strictly for troubleshooting, have you considered putting the printer in Access Point mode?

Then testing with a phone or tablet or laptop a few feet from the printer, then further away, etc. Then with the mobile device in the next room... then near the router... etc, etc. A demonstrable "map" of connectivity.

This type of testing removes your home network from the picture. Once you've verified that the DWC is (or is not!!!) stable from various distances when the link is direct printer<>device, you can go back to making it reliable on your home network, with some data points in your mind about the printer's basic physical capability to wirelessly reach various places in your home.

alexd607

@Danal

I attempted access point mode already with no success. It's not a matter of physical distance for sure, as my printer is literally adjacent to my wifi modem with no barriers between them.

Danal

Edit: Wrong thread. What I meant to say here:

If AP mode is unstable, it is guaranteed that everything else will be unstable. Go back to AP mode, thus eliminating a whole bunch of variables, and debug from there.

droftarts

Probably minor, but you have M587 in your config.g. You should comment this out or delete. From the Gcode dictionary:

Important! Do not use M587 within config.g. As well as being a security hazard, writing the access point parameters to WiFi chip every time you start the Duet may eventually wear out the flash memory. Also, the wifi module does not get enabled until the end of running config.g. It is better to use a macro to send M587 (source: https://forum.duet3d.com/post/42798)

Ian

alexd607

Well...it has officially quit working completely...

When I try to access the DWC I'm met with a blank white screen that never populates...

@dc42 would doing a hard firmware reset be a possible solution?

Danal

@alexd607 said in Help! DWC Disconnects and Drops after extensive troubleshooting:

When I try to access the DWC I'm met with a blank white screen that never populates...

Does it time out?

Can you ping it?

dc42

@alexd607 said in Help! DWC Disconnects and Drops after extensive troubleshooting:

@droftarts

I don't have a filament sensor or panel due fitted.

It's strange that that is what it's reporting considering the last reset was done by me via M112.

Please run another M122 report after the network has disconnected, without doing any emergency stops. I want to see if the "Heat task stuck" report is a recurring thing, or if it is a consequence of the emergency stop.

alexd607

@Danal

It does not timeout, and it still pings without any loss.

alexd607

@dc42

I was able to get momentarily connected and run M122 right after power-up, here's the result:

M122
=== Diagnostics ===
RepRapFirmware for Duet 2 WiFi/Ethernet version 2.04 running on Duet WiFi 1.02 or later
Board ID: 08DGM-9T6BU-FG3S0-7J1F6-3S06T-9A43F
Used output buffers: 3 of 24 (18 max)
=== RTOS ===
Static ram: 25680
Dynamic ram: 92808 of which 356 recycled
Exception stack ram used: 268
Never used ram: 11960
Tasks: NETWORK(ready,676) HEAT(blocked,1232) MAIN(running,3808) IDLE(ready,200)
Owned mutexes:
=== Platform ===
Last reset 00:00:44 ago, cause: power up
Last software reset at 2019-12-04 09:23, reason: Heat task stuck, spinning module FilamentSensors, available RAM 11568 bytes (slot 1)
Software reset code 0x40ad HFSR 0x00000000 CFSR 0x00000000 ICSR 0x0041f80f BFAR 0xe000ed38 SP 0x20004a9c Task 0x4e49414d
Stack: 0044d38f 004451d6 6100f000 3f000000 00000000 00000000 00000000 3331bb4c 41880000 3e178897 3e1cd04f be09b238 3e3a3fd4 00000000 00000000 00000000 3f800000 3f800000 3f000000 20000010 20003258 20002b88 0044d38f
Error status: 0
Free file entries: 8
SD card 0 detected, interface speed: 20.0MBytes/sec
SD card longest block write time: 0.0ms, max retries 0
MCU temperature: min 26.5, current 26.8, max 27.0
Supply voltage: min 24.3, current 24.4, max 24.5, under voltage events: 0, over voltage events: 0, power good: yes
Driver 0: standstill, SG min/max not available
Driver 1: standstill, SG min/max not available
Driver 2: standstill, SG min/max not available
Driver 3: standstill, SG min/max not available
Driver 4: standstill, SG min/max not available
Date/time: 2019-12-06 08:24:47
Cache data hit count 157313766
Slowest loop: 1.10ms; fastest: 0.07ms
I2C nak errors 0, send timeouts 0, receive timeouts 0, finishTimeouts 0, resets 0
=== Move ===
Hiccups: 0, FreeDm: 160, MinFreeDm: 160, MaxWait: 0ms
Bed compensation in use: none, comp offset 0.000
=== DDARing ===
Scheduled moves: 0, completed moves: 0, StepErrors: 0, LaErrors: 0, Underruns: 0, 0
=== Heat ===
Bed heaters = 0 -1 -1 -1, chamberHeaters = -1 -1
Heater 2 is on, I-accum = 0.0
=== GCodes ===
Segments left: 0
Stack records: 1 allocated, 0 in use
Movement lock held by null
http is idle in state(s) 0
telnet is idle in state(s) 0
file is idle in state(s) 0
serial is idle in state(s) 0
aux is idle in state(s) 0
daemon is idle in state(s) 0
queue is idle in state(s) 0
autopause is idle in state(s) 0
Code queue is empty.
=== Network ===
Slowest loop: 201.19ms; fastest: 0.08ms
Responder states: HTTP(2) HTTP(2) HTTP(0) HTTP(0) FTP(0) Telnet(0) Telnet(0)
HTTP sessions: 1 of 8

WiFi -
Network state is running
WiFi module is connected to access point
Failed messages: pending 0, notready 0, noresp 1
WiFi firmware version 1.23
WiFi MAC address 84:f3:eb:83:48:e5
WiFi Vcc 3.39, reset reason Power on
WiFi flash size 4194304, free heap 16832
WiFi IP address 192.168.1.151
WiFi signal strength -21dBm, reconnections 0, sleep mode modem
Socket states: 2 2 0 0 0 0 0 0

Danal

If it pings, you have a solid network connection and we can quit looking at the basic networking stuff.

Were it me, I'd rebuild the www directory on the SD card.

And/or, as a test, you can put your own "test.html" page on the www directory, and test via:

http://(ip of printer)/test.html

droftarts

@alexd607 said in Help! DWC Disconnects and Drops after extensive troubleshooting:

Last software reset at 2019-12-04 09:23, reason: Heat task stuck, spinning module FilamentSensors, available RAM 11568 bytes (slot 1)
Software reset code 0x40ad HFSR 0x00000000 CFSR 0x00000000 ICSR 0x0041f80f BFAR 0xe000ed38 SP 0x20004a9c Task 0x4e49414d
Stack: 0044d38f 004451d6 6100f000 3f000000 00000000 00000000 00000000 3331bb4c 41880000 3e178897 3e1cd04f be09b238 3e3a3fd4 00000000 00000000 00000000 3f800000 3f800000 3f000000 20000010 20003258 20002b88 0044d38f
Error status: 0

@dc42 Same error again

Ian

alexd607

@Danal

I've tried rebuilding the www folder already, as well as every other folder. I've tried rolling back to older firmware, and I've tried reloading the most recent full releases. All had the same result, no luck.