Check 7: Cannot Find Printer on Check Printer Settings Screen During Wired LAN Setup (Windows)
Check router settings.
Check router network connection settings such as IP address filtering, MAC address filtering, and DHCP function.
For more on checking the settings of the router, refer to the instruction manual supplied with the router or contact its manufacturer.
After checking the router settings, click Redetect on the Check Printer Settings screen to redetect the printer.
If the printer is found, follow the instructions on the screen to continue to set up network communication.