My parents in law have two #tlink #c20 routers and multiple network names in their house. Both routers show "WAN unplugged". They have wireless internet on their devices at home using a certain SSID, say network1, and the corresponding #wifi password, and my android device does too. But my laptops (apple and linux) cannot get wifi using the same SSID and password for network1. Some SSID network names, say network2, show "no internet" on my Android device. Any ideas what these devices are doing?