I'm sorry about the issue. Was it working fine previously? Or is this a new printer or new computer or new internet modem / router device?
Do you have windows xp, vista, or 7, or 8, 10, or mac computer?
So on the printer's screen, you go to the option Network settings -> Wi-Fi Setup Wizard, then select your wi-fi / wireless network name, and connect, then it says Unable to connect right?
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