WiFi not connecting

[Shubhanshu92]

My HP Smart Tank 750 was doing well since last 1 year.

Suddenly the WiFi direct password started changing automatically. 

I wanted to reset the password but it asked for some custom password, which I didn't know.

So I wanted to reset the wifi and re-connect via HP smart app.

Now it is not connecting. Everytime I reset and try connecting via the app, it is showing "unexpected error", "error code -1"

I tried connecting via the laptop, same result.

Some technician opined that it could be the wifi card that is defective.

Can anyone give some opinion here?

[Hawks_Eye]

Hi @Shubhanshu92 

Welcome to the HP Support Community!

Thanks for posting your query! We're here to help you get back up and running.

It sounds like you're dealing with a frustrating connectivity issue with your HP Smart Tank 750 printer. Here are some steps you can try to resolve the problem:

1. Factory Reset the Printer

• Open the ink access door and wait for the carriage to move to the center.
• Press and hold the Information button until all the buttons light up.
• Then, press the Information and Cancel buttons together for 6 seconds.
• Close the ink access door and wait for the loading icon to disappear.
• Turn off and on the printer, and ensure the Wi-Fi button starts blinking.

2. Reconnect via HP Smart App

• Open the HP Smart app and select Set up a new printer.
• Follow the on-screen instructions to connect the printer to your Wi-Fi network.
• If prompted, press the flashing Information button on the printer to complete the setup.

3. Update the firmware on an HP printer

• HP regularly releases new firmware versions for printer enhancements, app updates, or issue fixes. Update the firmware regularly to get the most out of your printer.
  Click on the link below for instructions on how to update the firmware of your printer.
  https://support.hp.com/in-en/document/ish_1776648-1643972-16

4. Print Network Configuration Page

• Press the Wireless and Information buttons simultaneously to print the network configuration page.
• Verify the Wi-Fi Direct name and password on the printed page.

5. Test with Another Device

• Try connecting the printer to a different device (e.g., smartphone or tablet) to rule out issues with your laptop.

If my response helped, please mark it as an Accepted Solution! ✅ It helps others and spreads support. 💙 Also, tapping "Yes" on "Was this reply helpful?" makes a big difference! Thanks! 😊

Take care, and have an amazing day!

Regards, 

Hawks_Eye

[Shubhanshu92]

I can do the factory reset but not being able to reconnect by HP smart app. During connection, "preparing the printer" is taking undue time and then it's showing unexpected error and error code -1.

Moreover the wifi direct option is not showing.

I got a diagnostic report from the printer where it is showing wifi function failed.

[Hawks_Eye]

@Shubhanshu92 

Thanks for troubleshooting I appreciate all your efforts.

Since the issue persists, It looks like we may have to take remote access and assist you further.

I'm sending you a private message to guide you on the next steps.

Thanks,

Hawks_Eye