Confirm the following:
Other devices on the network are turned on.
The network addresses (IP address, subnet mask, and default gateway) are correct if you have set the printer’s Obtain IP Address setting set to Manual.
Reset the network addresses if they are incorrect. You can check the IP address, subnet mask, and default gateway from the Network Status section on the network connection report.
If DHCP is enabled, change the printer’s Obtain IP Address setting to Auto. If you want to set the IP address manually, check the printer’s IP address from the Network Status section of the network connection report, and then select Manual on the network settings screen. Set the subnet mask to [255.255.255.0].
If your printer and network devices still do not connect after confirming the above, try the following.
Turn off the wireless router. Wait for about 10 seconds, and then turn it on.
Configure network settings from a computer on the same network as the printer by downloading and running the software from the following website.
https://support.epson.com (U.S. and Canada)
https://epson.sn > Setup (Other regions)