My Brother printer is connected to Wi-Fi but still shows an error. How do I troubleshoot the network connection?

First, ensure your printer is connected to the correct Wi-Fi network and that the Wi-Fi signal is strong. Check your router to see if the printer is listed as a connected device. Try restarting both your printer and your router. You can also try reconfiguring the Wi-Fi connection on the printer itself. Consult your printer's manual for instructions on accessing the Wi-Fi setup menu. Consider using a USB connection temporarily to rule out Wi-Fi issues.