WiFi Unreliable

Phaedrux

As for the slow wifi speeds it's a bit perplexing as the signal strength seems good and the SD card should be fine.

I notice you mentioned you have some pis in close proximity on wifi that work ok. Does powering off those pis have any improvement? Perhaps interference?

DessiVerse

@phaedrux I’ve tried that with no luck. I’ve also tried in other areas with no luck as well

Phaedrux

Can you try setting it up in Access Point mode where the duet creates a network which you then connect to and test the speeds that way?

https://duet3d.dozuki.com/Wiki/Gcode#Section_M589_Configure_access_point_parameters

DessiVerse

@phaedrux I can try that, yeah give me a few minutes

DessiVerse

@phaedrux said in WiFi Unreliable:

https://duet3d.dozuki.com/Wiki/Gcode#Section_M589_Configure_access_point_parameters

Hi so I tried this, and the SSID isn't broadcasting, I also tried a direct connection rather than just browsing for one. It also disconnected from my network so I can no longer connect.

Phaedrux

@dessiverse said in WiFi Unreliable:

@phaedrux said in WiFi Unreliable:

https://duet3d.dozuki.com/Wiki/Gcode#Section_M589_Configure_access_point_parameters

Hi so I tried this, and the SSID isn't broadcasting, I also tried a direct connection rather than just browsing for one. It also disconnected from my network so I can no longer connect.

Sorry, but I'm not exactly clear on what you mean by this.

What command did you send to setup the access point mode?

DessiVerse

@phaedrux I initially tried M589 with a custom SSID and password, but that didn't initially work so I tried M589 S"DuetSSID" P"password" I192.168.0.1 C1 from the example. It disconnected from my modem, but it wasn't broadcasting the SSID so I couldn't connect to it.

Phaedrux

Did you try sending M552 S2 after that? That should enable the module in AP mode.

DessiVerse

@phaedrux I'm trying this now, but the second I send M589 the duet goes offline and is unreachable. I'll have to try via USB.

Stephen6309

@dessiverse This may not be your problem. On a previous firmware for my ASUS RT-AX56U, I had to reboot the router once in a while to get back my wifi connections to my printers. Duet 3 6HC with a PI 4 and Mini 5+.

DessiVerse

@stephen6309 That's, concerning.

DessiVerse

@phaedrux Hello, finally got to test it, and using the Duet in AP mode there were 0 speed issues. Any ideas as to the causality of the original problem?

Phaedrux

So AP mode the speed is great, but when connecting through your router the speed is poor?

That would tell me there might be something going on with your router settings maybe. What kind of wifi router are you using?

DessiVerse

@phaedrux It's the Xfinity Modem / Router combo. I don't think it's an issue with the router only because no devices on my network have any speed issues. Even 2.4GHz devices. I have a Pi 3 that runs on 2.4GHz mode that I was using with SBC and it had no issues with speed.

EDIT: Is there any diagnosing things I can do to confirm if that is the case somehow?

Phaedrux

I'm not saying the router has a problem in and of itself, other than it might not be playing nicely with the duet wifi module. Though any time there have been issues like this it's been with ISP provided gear. Off the shelf stuff usually works without issue.

You mentioned a wifi repeater as well. What is it and how is it configured? Is the Duet using the repeater or direct to the router?

DessiVerse

@phaedrux The repeater is like a pod Xfinity offers? I'm not really sure how it is configured. The Duet is using the repeater as well

DessiVerse

@phaedrux Question, is it possible to view the dashboard via OctoPrint or another way? I'm trying to see if I can bridge the connection to mitigate the WiFi issue

stuartofmt

@dessiverse said in WiFi Unreliable:

Is there any diagnosing things I can do to confirm if that is the case somehow?

Maybe try tracert (win) or traceroute (linux) to the Duet from other machines may give some clues. If there are repeaters involved the results may (or not ) point to some differences.
Also - is the repeater a bridge (same ip subnet on either side of the repeater) or is there a different subnet to the router? If the latter - what happens when everything is on the router side with the repeater turned off (just for luck ) ?

DessiVerse

@stuartofmt I tried SSHing into the duet but it wasn't letting me connect? It kept saying connection refused so I couldn't diagnose most things at its end

dc42

@dessiverse, here is how you can test whether it is the WiFi or the SD card writing that is slowing down the upload speed in standalone mode:

To test the upload speed, rename a large GCode file (or any other file) to a name ending in ".dummy", then try to upload it on the Jobs page. You will need to set the file filter to "all files" to allow you to select that file. This will upload the file without writing it to SD card.
To test the SD card write speed, send M122 P104.