I'm sorry about the issue. Is there any error or message?
What is the brand/model of your Internet/wireless modem/router device?
Are you able to to go the Setup menu on the printer's screen, then there, go to Device settings / LAN settings / Wireless LAN / WLAN setup, etc. and select / connect to your Wi-Fi/wireless network name?
And/or what happens when you reinstall the printer's driver/software cd disk (or download)?
Do you have windows xp, vista, or 7, or 8, 10, or mac computer?
Please reply at the box below. Thank you.