Cannot get my Envy 6420 to connect wirelessly

[edskib]

I have spent the past day trying to connect to my printer, which is only a couple of years old. 

Whether I use the HP (not so) Smart app on my phone, or either my MacBook or Toshiba laptop, I just go round in circles. 

The app seems to see the printer, but then fails to connect to it.

I refuse to pay over £20 just for the privilege of speaking to someone who may or may not be able to help.

Anyone any tips? I'm going slightly mad here 

[Nal_NR]

Hi @edskib,

Welcome to the HP Support Community. 

I understand that you are facing connectivity issues. I’d like to help!

To provide you with an accurate solution, I'll need a few more details:

Make sure, your printer and your device are on the same network as 2.4GHZ only. 

How is the printer connected USB or Wireless? 
What is the status of the wireless light on the printer, steady or blinking?
Have you done any changes to your router network or software?

Restart devices

Restart your computer or mobile device, printer, and router to clear any error states.

Disconnect your computer or mobile device from the network name (SSID), and then reconnect it to the same network name your printer is connected to.

If the printer is available and has a ready status, the issue is resolved. You do not need to continue troubleshooting.

Press the Power button to turn off the printer. If the printer does not turn off, disconnect the power cord from the printer and from the power source.

Turn off the computer or mobile device that the printer was set up with.

Restart the router.

Reconnect the power cord to the printer and to a wall outlet.

NOTE:

HP recommends plugging the printer directly into a wall outlet.

Turn on the computer or mobile device.

Check the connection to make sure the same network is used by the printer and the device.

Computer or mobile device: Open the list of available networks and make sure it is connected to the correct network.

Printer: Check the Wireless light on the control panel. If it is solid blue the printer is connected.

Click here for the remaining steps. 

Update the firmware on the current OS you are using. 

Hope this helps! Keep me posted for further assistance.
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