From The Control Panel - Epson PM-520 series User Manual

User's Guide
Network Settings
❏ Mac OS X
Select how you want to connect the printer to your computer.
Disabling Wi-Fi from the Control Panel
When Wi-Fi is disabled, the Wi-Fi connection is disconnected.
1. Select Setup on the home screen.
2. Select Network Settings.
3. Select Wi-Fi setup.
4. Select Disable Wi-Fi.
5. Check the message, and then select Yes.
Disconnecting Wi-Fi Direct (Simple AP) connection

from the Control Panel

Note:
When Wi-Fi Direct (Simple AP) connection disabled, all computers and smart devices connected to the printer in Wi-Fi
Direct (Simple AP) connection are disconnected. If you want to disconnect a specific device, disconnect from the device
instead of the printer.
1. Select Setup on the home screen.
2. Select Network Settings.
3. Select Wi-Fi setup.
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