HP Laser MFP 137fnw wont connect to Wi-fi

[Anderzz]

i have tried resetting to default. manual entry and via guide. I have tried to update firmware without success.
The wi-fi is 2,4 GHZ.
when I remove security it logs on.

I have tried logging in to the printer's ip address and putting it on wi-fi there, but no luck

[KrazyToad]

@Anderzz

Welcome to HP Support Community

I would like to help

Please uninstall the printer driver from root level and download the full feature software

1.) In Windows, search for and open Programs and features

2.) Select your HP Printer

3.) Select Uninstall

4.) In Windows, search for and open Devices and printers

5.) In the Devices and Printers windows look for your HP printer. If you see it listed right-click on it and choose ‘Delete’ or ‘Remove Device’

6.) Open up the run command with the “Windows key + R” key combo.

7.) Type printui.exe /s and click Ok. (Note: there is a space in between “printui.exe” and “/s”)

8.) Click on the “Drivers” tab

9.) Look for HP Printer driver. If you see it Click on it and click Remove at the bottom

10.) Select Ok

11.) Select Apply and Ok on the Print Server Properties windows

12.) Close Devices and Printers

13.) Restart the computer and download the full feature software Link: https://ftp.hp.com/pub/softlib/software13/printers/MFP130/HP_Laser_MFP_131_133_135-138_Full_Software... and follow the onscreen instructions

Thank you

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[Anderzz]

Hi it does not work. it can easily see the network, but says invalid security, the network code is correct.

[KrazyToad]

Are you connecting the printer to a 2.4 GHz Network or 5 GHz Network?

Are you using a Dual Band Router?

[Anderzz]

Spoiler

2.4 GHz and no look at the last reply with pictures

[KrazyToad]

My apologies for missing out that detail

Since you are able to log in if you remove the security, you might have to contact your ISP 

But I suggest you try restoring the Network settings back to default first and then try connecting again

Press the (Menu) button > Network > Wi-Fi > Wi-Fi Default > Restore... on the control panel. The machine starts restoring default wireless network settings.