I have an HP Photosmart c4780 printer. Cannon reconnect to new router

[siamd2]

I have an HP Photosmart C4780 printer. Recently the Cable provider installed a new router and now i cannot Connect printer to router wirelessly. I have tried to Press "Scan" and then press "wireless Menu" and then Press "WPS" and Press the WPS buttin on the router. After a minute or two an error massage comes up. i have tred mutiple times. I cannot Connect the router and printer with a USB Cable b/c the router Has no USB port. I have deleted the printer from my MacBook.

[Kumar0307]

@siamd2, Welcome to the HP Support Community!

I understand you are trying to connect the printer to the new wireless network. What error do you get?

What encryption method does the new router use? This model printer supports WPA/WPA2 encryption.

• Make sure the printer and the Mac are connected to the same wireless network. Either 2.4 or 5GHz network.
• This printer supports only 2.4GHz network. So, the PC should be on the 2.4GHz 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.

Follow the steps mentioned in this document - Connecting an HP Printer Using Wi-Fi Protected Setup (WPS)

For more info, refer to page 5 of the user guide.

A USB cable should be connected between the Mac and the printer. 

Make sure the cable is directly connected between the Mac and the printer.

The use of a USB hub is not recommended. Also, make sure the cable is connected to a USB 2.0 port on your Mac.

Do you have an Anti-virus/firewall installed on the Mac? If yes, disable the same for time being.

To check, select the Go menu on the top of the screen and go to the Applications folder.

• Check if the printer is getting recognized by your Mac:

1. From the Apple menu, choose About This Mac.
2. Click System Report.
3. Under the Hardware heading on the left side of the System Information window, click USB.

USB 3 devices appear under USB 3.0 Bus, and USB 2 devices appear under USB 2.0 Bus. The printer should be under the USB 2.0 Bus

Hope this helps! Keep me posted. 

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