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 address 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 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., Canada, and Latin America)
https://epson.sn > Setup (Other regions)