Printer message says wpa password is incorrect.

[comanja]

Printer stopped working because message says WPA password is wrong.  Password I entered is the one I have used previously with no problems.  No it says it is incorrect and I can't hook up computer.  I removed device and now computer can not find it under Devices & Printers.

How do I clean out info in the computer?

[Raj1788 · Accepted solution]

@comanja

Thank you for joining HP Forums. 

This is a great place to get support, find answers to your technical queries.

Update the firmware for the printer using this link: https://support.hp.com/us-en/document/ish_1776648-1643972-16

Restart the printer.

Perform Restore Network Defaults on the printer

Select Setup on the front panel, select Network, and then select Restore Network Defaults.

Then, connect the printer to the network.

1. On the device control panel, press the Setup button.

2. Press an arrow button to move to Wireless Menu, and then press OK.

3. Press an arrow button to move to Setup Wizard, and then press OK.

4. Follow the display instructions to complete the setup.

once done, I recommend you delete the driver at the root level and Install the drivers, follow the steps below:

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 

Then, Click on this link: https://support.hp.com/hk-en/drivers/selfservice/swdetails/hp-officejet-4500-all-in-one-printer-seri... to download and install the driver.

Keep me posted, how it goes!

If the information I've provided was helpful, give us some reinforcement by clicking the Accepted Solution and Kudos buttons, that'll help us and others see that we've got the answers!

Have a great day!

Cheers:)