Before setting up the printer by using Epson Device Admin, you need to register the printer's administrator password in Epson Device Admin.
If you change the printer's administrator password, make sure you update the password registered in Epson Device Admin.
Start Epson Device Admin.
Select Devices on the side bar task menu.
Select Options > Password manager.
Select Enable automatic password management and then click Password manager.
Select the target printer, and then click Edit.
Set the password, and then click OK.