From WaveTech Digital Technologies:
CMWatcher ( Cable Model Watcher) allows you to quickly and easily monitor your cable model and take screen shot records of abnormal activity that can be used to help diagnose intermittent connection failure that otherwise would go undetected. CMWatcher is installed on a computer and will monitor your Internet connection. If the connection starts failing or fails completely it will take screen shots of your cable modem's log and signal/status pages and store them on the computer. You can then use that information (the connection history in CMWatcher and the screen shots) to help your Cable Company fix your connection.
Version 1.3 fixed issues where an incorrectly formatted IP address could be entered in the address to monitor field and CMWatcher would crash when coming back from a failed connection state, it also added connection monitor indicator to show the current connection state.