Just bought a RE6400 from ebay and it wasn't reset before I received it. How to Set Up a Linksys Range Extender Linksys Range Extender increases both the range and accessibility of your wireless network. * It works with all Wi-Fi routers to deliver speeds up to AC1200 (N300 + AC867 Mbps) and expands your coverage area; ideal for HD streaming, gaming and surfing.† There are two easy ways to set up the Linksys AC1200 BOOST EX Range Extender. Setting up the Linksys RE6400 AC1200 BOOST EX WI-Fi Range Extender is easy with its browser-based setup feature. RE6300/RE6400. You can find more help from our award-winning, 24/7 customer support at With the help of a paper clip, press the reset button. I tried doing a hard reset by pressing the button for ten seconds and nothing happens. Try rebooting the router then setup the extender by following the steps on this link.We recommend setting it up in the same room as the router to avoid any interference, we'll relocate it once done. Hi @James_L I have the same issue. Welcome to Setup Setup s/ Linksys Extender Setup - RTD Network My Home Network LIN