In case you face an issue of Linksys re6700 not connecting, it can occur for several reasons. This can handle it; get to some other place with the Extender at the same time making sure that it is within range from the Router. Moreover ensure no signal interruptions during connectivity issues prevention. Do not place it near metallic items, electronics or thick walls because they can cause interference in signals. If the issue continues, try restarting the extender and attempting to establish a connection once more. Make sure the default network is listed in the wireless network list by checking it. Use the devices' ethernet wires and ports to establish wired connections, if at all feasible. After that, visit the Linksys re6700 setup portal to view the most recent firmware update for your extender.