>Place the Linksys range extender nearby to your home router and power it on for the        initial setup.
>Press the WPS button on your extender and hold it down for 2-3 seconds.
Within the 1-minute press WPS button on your home router.
Then you need to wait for 1 min to get all the lights stabel and now try to connect any device with this device and you will see that iits working.
We can configure our linksys extender through the wps method and for that we need to follow these steps:-
Turn ON your Linksys Extender(Make sure your extender is plugged in within 10 ft. from the main router)
Press and hold the wps button from the extender for 3 seconds and then release it and then within 2 minutes press and hold the wps button from main router for 3 seconds and then release it
Now wait for the lights to get stable on the Linksys Extender ,once the light is stable it means your extender is configured.
You can follow these steps to setup your Linksys RE6300 Range Extender:-
>Place the Linksys range extender nearby to your home router and power it on for the initial setup.
>Press the WPS button on your extender and hold it down for 2-3 seconds.
>Within the 1-minute press WPS button on your home router.
>Wait for the extender LED light get stable and now try to connect any of your wireless devices with the extended network.
*If you want to connect your range extender with 5GHz network then repeat the same steps once again.