printer not finding my wireless

[Fiona49]

Have a HP LaserJet Pro M15 wireless printer.   Got a new, updated modem from Xfinity last week. all systems configured, TV working, wireless connection to printer is confirmed with a Configuration report and signal is strong.  However, I cannot print.  The report I get from printer is "looking for printer".....and it never finds it.

Last year when I got a new modem this happened and HP said that I needed to get the channel changed from 6 to 11.  Someone - not me - Xfinity  or HP?  - did that and printer started connecting.  In speaking with Xfinity today, they" cannot change channels."  Note - channel that had to be changed to was 11 ( from 6) and newest configuration report today shows that I am still on Channel 11.  Printer no longer under warranty and I cannot find a sole to talk to.  

[sandytechy20]

@Fiona49

Welcome to the HP support community.

I understand that you are getting connectivity issues between your printer and Mac, I am glad to assist you.

2.) Is your router dual-band enabled i.e., both 2.4GHz and 5GHz? If yes, make sure the dual-band has different SSIDs for 2.4G and 5G networks.

3.) What is the distance between the router and the printer?

4.) Is there antivirus software installed on your Mac?

5.) Could you perform a ping test and let me know the results? Use the printer IP address to perform a ping test, the printer IP can be located by selecting the wireless icon on the printer display.

Perform a ping test to check the connectivity

1. Click Applications > Utilities > Terminal.
2. type ping "IP address" and press enter

Wait until 10 pings have been performed and then press ctrl c on the keyboard and hit return. 

The results will appear.

Share the ping test results.

The wireless status menu on your Mac should also give us quite a lot of information that would help us identify the issue. You can press and hold option-click the WiFi icon and then use shift-command-5 to take the screenshot. Press the space bar when the icon turns into a camera. Share the ping test results and the screenshot with us.

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. 

Reply with the requested information for more assistance.

Cheers.