Printer connected to WiFi but cannot reconnect to printer

[Bmlr2018]

My printer and computer are both connected to WiFi, but somehow my printer disconnected from my computer. I cannot figure out how to reconnect them together. My computer says that it cannot find a printer. 

[senan6806]

@Bmlr2018

A warm welcome to HP Support Community!

The wireless light on the printer, is it steady or blinking?

Do you have any antivirus software installed on your Mac?

What's the make and model of your WiFi router?

Could you 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.