Starting in November of 2011, I started having problems with my modem losing connection to the internet. It would happen every other day or so which I could fix by doing a power cycle. Then, a couple of weeks ago, the intermittent disconnections started happening every day and the only way I could fix it was by unplugging the cable modem and re-plugging it back in. Is there anything I can do to troubleshoot this? I haven't changed any configuration settings in months.