Linksys WRT1900AC User Manual page 107

Wireless
Wireless — Lets you configure your router's wireless network. You can change
the security mode, password, MAC filtering, and connect devices using Wi-Fi
Protected Setup.
WRT 1900AC | How to Use Linksys Smart Wi-Fi
Security
Security — Lets you configure your router's wireless security. You can set up the
firewall, VPN settings, and make custom settings for applications and games.
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