HP ENVY Pro 6400 always disconnected. Drivers/Firmware up to date

[RickBlacker]

Was hoping to get some help here.  I have a two issues.

First is printer identification.  My printer is a HP Envy Pro 6400.  Says it right there on the printer and says it in the HP Smart app. However, after downloading the HP Support Assistant, it thinks I have a 6455.  Are they in the same family or something?

Second, which is what brought me here is that no matter what I do, my printer always shows offline in the HP Smart app. When this was a brand new printer, it seemed to connect and I was able to print, then I didn't use it for many many months.  Went to use it and it's always disconnected.  Had wireless setup at first, no problem.  Then it got to where it would only show active if I had the USB cable connected.  Now even that does not work.

I have ensured that my drivers are up to date as well as firmware. 

I'm running Windows 11, but this was happening with Windows 10 as well.  

Is it time to chuck this printer (which I'm ready to do) or is there something I can do to get this up and running?

[Kumar0307]

@RickBlacker, Welcome to the HP Support Community! I’m here to help.

HP Envy 6455 belongs to HP Envy 6400 printer series. The offline issue is not related to the printer, it seems like an issue with the HP Smart app.

Did you try reinstalling this app from Microsoft Store?

If this does not help, 

Install the printer using the TCP/IP port:

Check for any pending Windows updates first.

1. On the PC, go to Control panel > Devices and printers > Remove the existing printer entry > click on Add a printer(at the top) 
2. Under 'Choose a device or printer', click on 'The printer I want isn't listed'.
3. Select 'Add a printer using a TCP/IP address'
4. Find the IP address of the printer by printing a wireless test page:
5. Touch and hold the Information button  for 3 seconds.

6. All the control panel buttons light up.

7. At the same time, touch the Information and Resume buttons .

   A Wireless Network Test Results page prints.

8. Type in the 'IP address in Hostname or IP address' box, click next
9. Proceed to the next steps by following the on-screen instructions.
10. Try printing. Do not use the app, open the File > Print

Hope this helps! Let me know how it goes. 

Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.

Click on the YES button to reply that the response was helpful and/or to say “Thank You”.

Have a great day! 

[RickBlacker]

I have uninstalled the app and reinstalled it using the Microsoft store.  Uninstalled the printer in device manager. I will use your steps outlined later today when I get a chance to see if that corrects things.

Thank you for your reply!

Rick