My son was trying to find my wireless network as a guest and entered what I thought was the secure pass word it didn't work so he tried to disable mine to check . and somehow managed to loose my connection. it keeps saying acquiring network address , it still does work on another laptop but not on mine. I do not have the disc to the router anymore
on the router there should be a reset button hold it in for about 20 sec and release. wait for the lights to come back on and blink appropriately.
after doing this connect a lan wire from port one on the back of the box and into a computer now you will have a wire connection to the net... make sure your wirless is disabled and open up your browser. when your browser opens type in the following 192.168.1.1 this should take you right to the linksys router make sure to setup a admin password first after you have setup the password for the admin you can continue setting up with the wizard that is on your router it will help you step by step in setting it up... make sure to go to the wirless tab to enable a secure wireless connection
for more help visit
it will help with step by step the whole way through by your product #
or http://screenshots.modemhelp.net/navigation/hardware/wirelessdevices/linksys/ if either of them is what you have
hope this helps :)