Check the following.
The default gateway address is correct if you set the printer’s TCP/IP Setup setting to Manual.
The device that is set as the default gateway is turned on.
Set the correct default gateway address. You can check the default gateway address from the Network Status part on the network connection report.
If still does not connect your printer and network devices after confirming the above, try the following.
Turn off the wireless router. Wait for about 10 seconds, and then turn it on.
Make network settings on the computer that is on the same network as the printer using the installer. You can run it from the following website.
https://epson.sn > Setup