Although wireless routers have advanced security settings, perhaps the most extreme way to keep your network secure is to shut off wireless access completely. Whether you're chasing a more secure network or looking for a way to turn an old wireless Linksys router into a simple wired Ethernet switch, you can shut off the wireless broadcast using the Linksys router management interface.
Open a Web browser.
Navigate to the IP address of your router. The default address for Linksys routers is 192.168.1.1. Enter your router admin name and password.
Click on "Wireless."
Open the "Wireless Network Mode" drop-down menu and select "Disabled."
Click "Save settings."
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