Comments
simply YES
Posted by HamidAliKhan
Yes it can be done which will save power, improve security.
Posted by suresh123
Personal computers allow you to turn wireless networking off and on easily, Disabling Wi-Fi on a wireless router, however, is not as simple.
Also visit the following link for more details:
http://compnetworking.about.com/od/wirelessfaqs/f/router-wifi-off.htm
Posted by sagitraz