Hi Rumplebumple2989. Press and hold the reset button for 30 seconds and power cycle it. Check if your computer can get a valid IP from the router. You may use the links below to guide you.
Checking the local IP address of your Linksys router:
http://kb.linksys.com/Linksys/ukp.aspx?pid=80&vw=1&articleid=3997
Different ways in setting up your Linksys wireless router: