My DCP T420W is not connecting to my Wi-Fi network. What troubleshooting steps can I take?

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Grade: Education Subject: Support
My DCP T420W is not connecting to my Wi-Fi network. What troubleshooting steps can I take?
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Double-check your Wi-Fi password and ensure the printer is within range of the router. Restart both the printer and the router. Try re-entering the Wi-Fi network settings on the printer's control panel. If using WPS, ensure it's enabled on both devices.