1. Make sure your printer is connected to your local Wi-Fi network.
2. Double check the password of your network and ensure that it is correct.
3. Make sure your printer is up-to-date by ensuring the latest driver for your printer is installed and active.
4. Configure the wireless setup of your printer again.
5. Try restarting both your printer and router to ensure everything is up-to-date.
6. Contact your local service provider for advice if the issue continues.