I'm sorry about the issue. Is there any error or message?
Did you get a new modem/router device? Or is this new printer, etc.? Or was it working previously?
What is the brand/model of your Internet/wireless modem/router device?
Do you know how to check / confirm your wireless / network key / password?
Do you have windows xp, vista, or 7, or 8, 10, or mac computer?
What happens when going to the menu on the printer device, then go to the Network option, then WLAN option, then Setup Wizard option, then select/ connect to your wireless network name? Is there any error or message?
Please reply at the box below. Thank you.