I use wireless, but it's not encripted only because for anyone to really be able to use it they have to be sitting in your driveway, so I'm not worried. But sometimes it's goes all wonky, and I have to go in and adjust the settings, ie. change the channel etc. The way to do that is to type in your IP addy in your browser and a page with all your router info should come up. Go into wireless settings or something like that, and change the broadcast channel. My router is Linksys too, and when I've called them they actually recommend that the security feature is turned off. Also, change the NAME of your connection to somethine original (default is linksys) so you know for sure it's yours. (My name is Bob hehe)

ALso, go into control panel to your Network Connections, open up the properties for your wireless Network Connections, Click the Wireless Connection tab, and make sure that YOUR connection (ie. linksys, Bob, etc) is the ONLY one in the list under Preferred Networks. If it is NOT the only one, REMOVE the one you don't want, and refresh the AVailable Networks.

Long and confusing, I know... but hopefully it may help.