[BUG] Cannot connect to hidden network

[HyperTextGo]

Printer model

MK4, XL, probably MK4S

Firmware version

Latest stable build

Upgrades and modifications

No response

Printing from...

USB, want prusalink/prusa connect

Describe the bug

I am at a school that has pretty heavy network restrictions (and signin restricions), however the robotics lab has a hidden network that has no restrictions. Our prusas will not seem to connect to the hidden network, and the internet. I am not sure if this is a bug or a missing feature. Also as extra info the network name has only numbers.

How to reproduce

1. Get a hidden network
2. Manually enter credentials (MK4) or load the config file (XL)
3. Attempt to connect

Expected behavior

Connect to the internnet

Files

wifi config.ini.zip
If I get time, I'll dump the network config too.

[CZDanol]

Hello, are you sure that this is due to the wi-fi being hidden? We have some users reporting not being able to connect for temaple to 2PA2/3 mode wi-fis (#3908).

[HyperTextGo]

The network has a hidden ssid, meaning it doesn't broadcast anything unless it gets the credentials including the name before hand. Also I'm pretty sure we use different wifi modules, than temaple

[CZDanol]

I know what a hidden SSID is. I was just asking a question whether it would connect to that wi-fi even if the SSID was not hidden.

[3d-gussner]

• I created to test this a hidden 2.4GHz Wifi network named Hidden with Encryption: mixed WPA/WPA2 PSK (CCMP) on my OpenWrt router. Used as test key/password HiddenPassword.

• First I connected with my Android phone to this WiFi network and tested one web site on the internet. I had to enter SSID and key manually as it has not have been found by the phone.

• I modified in the prusa_printer_settings.ini the [wifi] section to

[wifi]
ssid=Hidden
psk=HiddenPassword

• As soon I inserted the USB drive with the prusa_printer_settings.ini on the MK4 got a "wizard" on LCD.

• After following the instructions the MK4 switched to the Hidden Wifi network and works correctly.

  • In PrusaConnect under Settings it shows Wi-Fi SSID address Hidden

• Switched back to my normal Wifi

• In LCD -> Settings -> Network -> Wi-Fi -> Wi-Fi Wizard -> Enter credentials manually entered the SSID and key/password manually. Confirmed with Finish to connect to Hidden .

  • Also works.

My MK4 has FW 6.2.0-RC1+8787

[CZDanol]

All right, so it's not like our printers don't work on hidden networks in general. Thanks for checking this @3d-gussner

[HyperTextGo]

I think I may have found the problem, the wifi we have is only 5ghz, and the printer's wifi module only works at 2.4ghz. I'll figure out if I can use a different module, but if that doesn't work, it's not the firmware's fault. I will close this issue with this comment