Mini Wifi won't connect to WiFi after restart (some times).

Exerqtor

Duet3 Mini Wifi (RRF 3.5.2-rc1) & 1LC 1.2a (RRF 3.5.1) in standalone, DWC 3.5.1 & WiFiServer 2.1.0

This is an issue i've been having for well over a year now (and i have a post from way back that I will link to once i find it in my post history), but it's been "behaving" quite well since the the first 3.5rc & wifiserver 2.0betas. Up until when i went over to the full 3.5.1 suite.

Now it's totally hit or miss if the printer will connect to my wifi after a reboot. And it's stuck in a never endig loop where it tries to connect, fails, goes to idle, tries to connect and keeps at that until i power it off (or turn off the wifi module.

If i power toggle the printer enough times it will finally connect and stay connected.

I just tried updating to 3.5.2rc1, and i've been stuck trying to power toggle the printer 30 times after the mainboard firmware update without it wanting to reconnect.

The WiFi i'm trying to connect to is my 2.4ghz dedicated IOT SSID btw.

This is what's getting reported on PD:

-  WiFi module is idle
-  Error: WiFi module reported: Failed to load credentials
-  WiFi module is idle
-  Error: WiFi module reported: Failed to load credentials
-  WiFi module is idle
-  Error: WiFi module reported: Failed to load credentials
-  WiFi module is idle
-  Error: WiFi module reported: Failed to load credentials

EDIT:
Just pulled the SD-card and added back runonce.g (it's got the wifi settings) to see if that helped, but same issue. I've probably power toggeled 50 times by now.

gloomyandy

@Exerqtor If you run
M552 S-1
M552 S0
M587
what does the list of SSIDs and credentials look like? Can you also run M122 with the wifi module "active" so we can check what version of the WiFi firmware you have installed.

Probably one for @rechrtb to investigate.

rechrtb

@Exerqtor Hi, this was reported by one other user recently in https://forum.duet3d.com/topic/35761/bad-wifi-module/6. In their case, it seems they had the same SSID entries but different capitalization. @gloomyandy recommended looking at the list of SSIDs using M587, are you able to do that?

Also, just to confirm - this is for an enterprise network?

Exerqtor

@rechrtb sorry but I didn't get a notification that anyone had replied to this thread/issue for some reason.

But after I restarted my network that time and finally got the mainboard to connect agian I haven't had any issues, so it might look like it the issue wasn't (only at least?) in the Duet3 mini.

I'll mark this thread as solved since I haven't had the issue reproduced in nearly a month. When I have time I will put together a macro set for that I can access on PD with M587 etc.