My HP ENVY won’t connect to my wireless network

[Bo51]

Printer wouldn’t print.  Said it was not connected to the internet. It suggested I turn the printer and the router off then turn router on before the printer.  After I did that, It had me connected to an old wireless network.  And when I put in the current one, it can’t find it even though all my other devices are connected to it.  I did recently up grade to iOS 11.2.2.  What else can I do?  Oh, after the 3rd time it couldn’t find the wireless network, I got an error code, OX0076CD51, UI_MAIN_MEMC

Help!

[sandytechy20]

@Bo51

Welcome to the HP Forums, this is a great location to get assistance! I read your post and see that you are having issues connectivity issues on HP ENVY 4520 Printer. I would like to help you resolve this issue. 

However, I will need a few details to provide an accurate solution,

When did this issue start?

Did you do any hardware or software changes apart from iOS?

Meanwhile 

Perform a power reset

1. Turn on the printer, if it is not already on.
2. Wait until the printer is idle and silent before you continue.
3. With the printer turned on, disconnect the power cord from the rear of the printer.
4. Wait at least 30 seconds.
5. Reconnect the power cord to the rear of the printer.
6. Turn on the printer.

Update the printer firmware.

Click here and refer the document to upgrade the printer firmware.

Let me know how it goes.

Cheers.