D-Link DWR-112 User Manual page 45

Section 3 - Configuration
Enable Hidden Enabling Hidden Wireless mode is another way to secure your network. With this option enabled, no wireless clients
Wireless:
will be able to see your wireless network when they perform a scan to see what's available. In order for your wireless
devices to connect to your router, you will need to manually enter the Wireless Network Name on each device.
Wireless Refer to Section 4: Wireless security for more information regarding wireless security.
Security:
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