>Turn On your Extender
>connect your computer with the Extender's wifi network
>open your browser and type this address:- https://extender.linksys.com or 192.168.1.1
>now click on start button
>and follow the instructions and complete the setup
we can configure it through the wps option and for that ,
press and hold the wps from your extender for atleast 3 seconds and within press and hold the wps from your main router for atleast 3 seconds.
and then wait for the extender to reboot.