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?