Whenever I try to check for software updates, either by manually initiating (clicking on Check Now button) or by regularly scheduled setting, the progress bar starts, soon stops progressing and I get a window saying "A networking error has occurred: timed out (-1001). Make sure you can connect to the Internet, then try again." It also gives me a button to run diagnostics, but all I learn there is that my internet connection is fine. (Which I already knew, because I'm constantly using it.) Any words of wisdom will be greatly appreciated!