No printer connection after new modem installed

[Silvi]

I just replaced my old modem with a new one and now my Wi-Fi printer (HP Smart Tank 6000 series) has stopped printing. I tried to delete and reinstall it and now I cannot even find the printer. I only bought it a year ago. I use macOS Catalina 10.15.7. Can this be upgraded to a newer version?

 

[MacsBug]

How is the printer connected to your network?

What I have found on HP Printers especially if connected via WiFi that after you change a modem, you should reset the network settings, on the printer and then reconnect it to your network.