Have HP Envy 7645. Unable to keep it in communication with our two Macs using wireless connection.

[TXDan123156]

Have gone through recommended process of turning off printer, then unplugging printer, then shutting down computers followed by unplugging WIFI modem, then bringing all back in reverse order followed by restoring to manufacturer's original settings and going back through Wifi Setup Wizard and  reinstalling password.  Printed out Wireless network test results and all looks good, but  still have sometimes issues with printing and nearly full time issues with scanning.  

[KrazyToad]

@TXDan123156

I understand your concerns and I would like to help. We need to check few details first and we could try adding the printer as Airprint

- Do you have any Anti-virus software installed on your MAC? If you do, please deactivate it for now.

- Ensure the printer and the MAC are connected to the same wireless network.
-Note:- This printer supports only 2.4GHz network. Do not connect it to 5 GHz Network incase your Router supports both 2.4 and 5 GHz
- If you have a Dual-band router and both 2.4GHz and 5GHz networks share the same name/SSID, then the printer will not be able to connect to the network. In this case, contact your Internet service provider to assign different names to both the networks.

Please check with your Internet service provider if your router is able to forward 'Bonjour packets'. This is very important

Bonjour locates devices such as printers, other computers, and the services that those devices offer on a local network using multicast Domain Name System (mDNS) service records. The software comes built-in with Apple's macOS and iOS operating systems.

Also perform a ping test using the Mac Network Utility and let me know the results. Use the printer IP address to perform a ping test, the printer IP can be located by touching the wireless icon on the printer display or by printing a Network Configuration Page

Next ensure your Mac and Printer have the latest updates

Printer Firmware: https://support.hp.com/in-en/document/c02919168

Mac update: https://support.apple.com/en-us/HT2015

Keep me posted how it goes

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