Strong connections play a crucial role in the fastest and most stable signal transmission between the extender and connected devices. That's why you take care of them while attaching your devices to the extender and its default network. Foremost of all, make sure your extender and router are connected strongly during the linksys re6500 setup. Later, check if your device is connected to the Linksys default network or not. Apart from that, if there are wired connections then ensure the ethernet cables are working properly. We recommend you try to make wired connections instead of wireless as ethernet cable provides better signal transmission.