To reconnect your HP Smart printer to Wi-Fi, follow these key steps:

1. **Use the Wireless Setup Wizard on the printer** (if it has a touchscreen):
– On the printer control panel, go to *Setup > Network Setup > Wireless Settings > Wireless Setup Wizard*.
– Select your Wi-Fi network from the list and enter the password to connect[1].

2. **Use the HP Smart app** on your smartphone or computer:
– Ensure your device is connected to the same Wi-Fi network you want the printer to join.
– Open the HP Smart app and tap *Add Printer* or select your printer.
– Follow the on-screen prompts to set up the printer and connect it to the new Wi-Fi network[1][2][3][5].

3. **Reset network settings on the printer if needed**:
– On the printer, navigate to *Network Settings* and choose to *Restore Network Settings* or *Reset Wireless Settings*.
– Then reconnect using the Wireless Setup Wizard or HP Smart App[2][4].

4. **If your printer doesn’t have a control panel**, and your router supports WPS:
– Press the WPS button on your router, then press the WPS button on your printer.
– Wait for the printer to connect automatically[2].

5. **After setup**, confirm connection by printing a test page or checking the Wi-Fi light status on the printer (usually solid blue when connected)[3].

If connection problems persist, try restarting all devices (printer, router, computer), reinstall the HP Smart app, and ensure your printer firmware is up to date[4].

These steps cover most HP Smart printers and help reconnect to a new or changed Wi-Fi network effectively.