network error

My printer is working and the web interface appears OK but on pronterface I am getting the following error which keeps rolling:-
Network: Connection error, code -11

M122 reports:-
Platform Diagnostics:
Memory usage:
Program static ram used: 41420
Dynamic ram used: 47212
Recycled dynamic ram: 1480
Current stack ram used: 2880
Maximum stack ram used: 4568
Never used ram: 3624
Last reset 00:05:52 ago, cause: software
Error status: 0
Bed probe heights: 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000
Free file entries: 10
Longest block write time: 0.0ms
Slowest main loop (seconds): 0.489922; fastest: 0.000031
Move Diagnostics:
MaxReps: 0, StepErrors: 0
Heat Diagnostics:
Heater 1: I-accumulator = 0.0
GCodes Diagnostics:
Move available? no
Network Diagnostics:
Free connections: 16 of 16
Free transactions: 24 of 24
Free send buffers: 20 of 20
Webserver Diagnostics:
Network: Connection error, code -11

Any ideas if this is a real problem or not?

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appjaws - Core XYUV Duet Ethernet Duex5
firmware 3.1.1 Web Interface 3.1.1
Ormerod 1-converted to laser engraver, Duet wifi
OpenSCAD version 2020.07
slic3r-1.3.0, Simplify3D 4.1.2, Cura-4.4.1

Hello,

what about the config.g? How is your network-setup? How many switches? How many devices are connected at the same network? What kind of switch like 100 mbit? Are foreign networks connected to the switch?

Kind regards,

Sven

P.S.: Sorry I have to ask but we had one case here and we got later the information that there was a streaming network on the same subnet so there were not enough ressources for the communication of the Ormerod.

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Slicer: Simplify3D 4.0; sometimes CraftWare 1.14 or Cura 2.7
Delta with Duet-WiFi, FW: 1.20.1RC2; mini-sensor board by dc42 for auto-leveling
Ormerod common modifications: Mini-sensor board by dc42, aluminum X-arm, 0.4 mm nozzle E3D like, 2nd fan, Z stepper nut M5 x 15, Herringbone gears, Z-axis bearing at top, spring loaded extruder with pneumatic fitting, Y belt axis tensioner
Ormerod 2: FW: 1.19-dc42 on Duet-WiFi. own build, modifications: GT2-belts, silicone heat-bed, different motors and so on. Printed parts: bed support, (PSU holder) and Y-feet.
Ormerod 1: FW: 1.15c-dc42 on 1k Duet-Board. Modifications: Aluminium bed-support, (nearly) all parts reprinted in PLA/ ABS, and so on.

Thanks for the info,
I only have the ormerod, a nas and the main computer running at the moment, all via a netgear 10/100/1000 switch which is connected to the router.
What does Network: Connection error, code -11 actually mean?
What tests can I do to help resolve this?

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appjaws - Core XYUV Duet Ethernet Duex5
firmware 3.1.1 Web Interface 3.1.1
Ormerod 1-converted to laser engraver, Duet wifi
OpenSCAD version 2020.07
slic3r-1.3.0, Simplify3D 4.1.2, Cura-4.4.1

I asked for the config.g. For the error explanation the expert knowledge of dc42 or ZPL would be needed, but maybe there is a problem with your config.g. After I checked this I may have other ideas. I personally use some kind of sequencer to detect an error (private or job) which is for me very effective.
Also which Pronterface version? Which settings? Probably it is an error of Pronterface. As long as all works properly I would ignore this problem.

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Slicer: Simplify3D 4.0; sometimes CraftWare 1.14 or Cura 2.7
Delta with Duet-WiFi, FW: 1.20.1RC2; mini-sensor board by dc42 for auto-leveling
Ormerod common modifications: Mini-sensor board by dc42, aluminum X-arm, 0.4 mm nozzle E3D like, 2nd fan, Z stepper nut M5 x 15, Herringbone gears, Z-axis bearing at top, spring loaded extruder with pneumatic fitting, Y belt axis tensioner
Ormerod 2: FW: 1.19-dc42 on Duet-WiFi. own build, modifications: GT2-belts, silicone heat-bed, different motors and so on. Printed parts: bed support, (PSU holder) and Y-feet.
Ormerod 1: FW: 1.15c-dc42 on 1k Duet-Board. Modifications: Aluminium bed-support, (nearly) all parts reprinted in PLA/ ABS, and so on.

Network connection error -11 means that a TCP connection has been reset and I suspect your PC to be the reason - I don't get any with my configuration here. If you're interested in why this is happening, you may want to check out this article. OTOH, if everything is working, there's probably no need to investigate this any further.