EWS password is lost，how can I reset this password or reset the printer to factory default ？

[tonyflair]

Hello:

The password of my HP DeskJet 3779(Web printer)'s EWS is lost.
How can I reset this password or reset the whole printer to factory default set without replacing its main control board.
Your aids or suggestions will be highly appreciated.
Good luck!

[Jeet_singh]

@tonyflair,

Welcome to the HP Support Community. 

Don't worry, I'm here to help! 

Let's get straight into this - (Please skip the steps if you have already performed).

Network Restore - Press the Wireless button and the Cancel button from the printer control panel at the same time, and then hold them for three seconds.

If the router has a WPS push button, try these steps to connect the printer to the network -

1) Press and hold the Wireless button on the printer for more than three seconds to start WPS push mode. The Wireless light starts blinking.

2) Press the WPS button on your router.

NOTE: THE MOMENT YOU PRESS THE WIRELESS BUTTON ON YOUR PRINTER, WITHIN 30 SECONDS YOU SHOULD PRESS THE WPS BUTTON ON THE ROUTER.

If this step is not successful, then we need to first connect the printer to a computer using a USB and then convert the wired connection to wireless as the printer does not have a control panel to enter the Wi-Fi password. 

Please refer to this link for steps.

If you have followed the steps suggested and still having the issue. I would suggest the next step would be to perform an advanced reset on the printer. 

I am sending you a private message with the steps to reset the printer. Please check the mailbox icon at the top-right corner of this screen.

Please check your Private message icon on the upper right corner of your HP Forums profile,

Next, to your profile Name, you should see a little blue envelope, please click on it.

I hope this helps resolve this issue completely,

Regards,