my Mac doesn't see the HP Officejet Pro 7740 anymore.

[Slowmaz]

since a few days my Macbook doesn't see the printer any longer on the wireless.

i already tried everything you suggested in the other posts: plug unplug, tests, print tests, ecc...

another window laptop has no issues after installing the HP Smart App, but with Mac is a hell.

i plugged the USB and it's working poorly.

the HP Smart app works very badly too, sometimes starting some others not. scans get stuck.

i don't understand what shall i do.

thank you.

[Kumar0307]

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

I understand you are not able to print from your Mac. Let us try these steps:

• Make sure the printer and the Mac are connected to the same wireless network. Either 2.4 or 5GHz network.
• If you have a Dual-band router and both 2.4GHz and 5GHz networks share the same name/SSID, 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 networks.
• Also, check with your Internet service provider if your router is able to forward 'Bonjour packets'.

• 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.

Update the printer firmware

Click here to download and install the latest printer firmware from your Mac.

Click here to know different methods of updating printer firmware.

Also, check for any software updates on Mac

Click the Apple icon > About This Mac > Software Update and install any available update.

Perform a ping test to check the connectivity

1. Obtain the IP address of the printer by clicking on the Wireless icon on the printer
2. Open a new Terminal window (it's located in Applications > Utilities, or you can just start typing it in Spotlight).
3. Enter “ping” followed by the IP address of the printer. 
4. Press Return. Press ctrl C after 10 pings
5. There should be 0% packet loss, share the results in your next post.

Hope this helps! Keep me posted. 

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Have a great day!