Duet Connection Issues

com3

Hey there!

Ive been using multiple printer with Duet Wifi and had occasional connection issues. So I switched to the lan version for the latest Printer in hope it would improve stability but it actually got worse. The problem are frequent short disconnections (.5-2 times per minute) which make it super hard to use the printer at all.

I tried multiple Web Control Versions: 2.0.7, 2.0.4, 2.1.7 and 3.1 without any noticable improvement.
Both Duet Wifi and Duet 2 Lan are hooked to a router with fixed IP

Does anyone share this problem or has an idea how it could be fixed?

	=== Diagnostics ===
RepRapFirmware for Duet 2 WiFi/Ethernet version 3.0 running on Duet Ethernet 1.02 or later + DueX5
Board ID: 08DLM-996RU-N8PS4-6J9DA-3SD6M-TVU3N
Used output buffers: 1 of 24 (24 max)
=== RTOS ===
Static ram: 30516
Dynamic ram: 93388 of which 0 recycled
Exception stack ram used: 248
Never used ram: 6920
Tasks: NETWORK(ready,640) HEAT(blocked,1232) DUEX(suspended,160) MAIN(running,3676) IDLE(ready,156)
Owned mutexes:
=== Platform ===
Last reset 00:04:18 ago, cause: power up
Last software reset at 2021-01-14 14:52, reason: User, spinning module GCodes, available RAM 6560 bytes (slot 0)
Software reset code 0x0003 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x0441f000 BFAR 0xe000ed38 SP 0xffffffff Task 0x4e49414d
Error status: 0
Free file entries: 10
SD card 0 detected, interface speed: 20.0MBytes/sec
SD card longest block write time: 3.2ms, max retries 0
MCU temperature: min 31.0, current 31.2, max 31.6
Supply voltage: min 24.1, current 24.2, max 24.2, 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
Driver 5: standstill, SG min/max not available
Driver 6: standstill, SG min/max not available
Driver 7: standstill, SG min/max not available
Driver 8: standstill, SG min/max not available
Driver 9: standstill, SG min/max not available
Date/time: 2021-01-14 15:06:54
Cache data hit count 434684016
Slowest loop: 10.27ms; fastest: 0.10ms
I2C nak errors 0, send timeouts 0, receive timeouts 0, finishTimeouts 0, resets 0
=== Move ===
Hiccups: 0(0), FreeDm: 169, MinFreeDm: 169, MaxWait: 0ms
Bed compensation in use: none, comp offset 0.000
=== MainDDARing ===
Scheduled moves: 0, completed moves: 0, StepErrors: 0, LaErrors: 0, Underruns: 0, 0
=== AuxDDARing ===
Scheduled moves: 0, completed moves: 0, StepErrors: 0, LaErrors: 0, Underruns: 0, 0
=== Heat ===
Bed heaters = -1 -1 -1 -1, chamberHeaters = 0 -1 -1 -1
=== GCodes ===
Segments left: 0
Stack records: 2 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: 23.08ms; fastest: 0.04ms
Responder states: HTTP(0) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0)
HTTP sessions: 2 of 8
Interface state 5, link 100Mbps full duplex

jay_s_uk

I would first suggest upgrading to 3.2
https://github.com/Duet3D/RepRapFirmware/releases/download/3.2/Duet2and3Firmware-3.2.zip

com3

Just tried it without success, everything is now on 3.2 but the issue remains

//edit: had to upload it multiple times because of the connection loss

Phaedrux

So you had connection issues on wifi and now also on wired. I would suggest the issue is with the router/switch hardware.

dc42

Do the disconnections occur when the printer is idle, or only when it is moving?

com3

Im not too shure that it´s my network as I got multiple duets running and only one is particular problematic. But ofc it still could be an issue. However, I need some hardware to rule out this potential problem.

@dc42 It seems like it doesn´t matter if it´s idle or not

Phaedrux

config.g?
Did you confirm the update to 3.2 was successful with M115?
Did it also update the DWC version?
Can you show the dwv console output again with the updated versions?