I'm currently staying at a motel. The WiFi signal is weak and unstable. My son's Xbox 360 will connect but won't stay connected. I bought an ether net cable and then realized that the Xbox 360 can't configure direct ether net cable. I bought a used Linksys 2.4 Ghz router and ran ethernet from router to Xbox. I get a DNS error. Can't access the router. I only have my phone. I downloaded an app, but it still won't access router. What can I do?