I was connected with no problems, then the internet connection dropped. I restarted the computer, that wasn't the problem. I turned off the router and turned it back on, the internet light came up red. Power light, DSL, wireless buttons are all green. Why is the internet connection gone? How do I fix it? I am on a MiFi to be able to be connected, but this is not something I can do all the time---need my DSL back!