I recently got back my old laptop, but when plug in my ethernet cable that is hooked up to my router, it doesn't work. I further investigated and found an old modem installed. It isn't my modem, though. I located and uninstalled it's drivers and tried to connect again. That didn't help, because the local area connection thing is gone and my moden didn't come with a disc. I also cant use another because my disk drive is broken. Any help?