Follow these steps to change your password to a secure alternative:

Verify that your computer and the printer are on the exact same subnet and network. Ensure you typed the IP address correctly without typos.

If you never set an administrator password, your printer will have a unique default one. Epson uses one of two methods for this, so you'll need to check your physical device.

A: No. Epson cannot "look up" a lost password because it is encrypted locally on the printer's memory. They can only provide a master reset code if you prove ownership.

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The "administrator password" is a special key that controls the highest-level settings on your printer. It’s used for tasks like changing network settings, managing security configurations, controlling which features other users can access, and restoring the printer to its default state. It’s different from the password you use to connect your printer to a Wi-Fi network, which is set by your router.

Are you having trouble interface or the printer's physical control panel ? Forgot the Administrator Password - Epson

If your WFC5790 was leased or managed by a company like Epson Print Admin or PaperCut, the password may be stored on a remote server. In that case, a local reset won’t work—you’ll need to contact your IT department or the leasing company.

The serial number is exactly 10 characters long, typically consisting of 4 letters followed by 6 numbers (e.g., ABCD123456 ). It is case-sensitive; use capital letters.