When I start to download large files, such as video, from the internet on my home computer, the internet breaks down and none of my three home computers can browse the internet.\n\nThe only thing I can to get the internet back is to restart both the Tims Warner cable box and the router. I've called Times Warner and they say everything is OK on their side. However I insisted on replacing their cable box and that didn't help. I also tried a different router, it didn't help. I've tried different usernet service providers, the same thing happens.\n\nThis problem started about one month ago. It was all fine before this. and I have been with Times Warner for years.. My take is Times Warner is doing something to disrupt my internet connection because they probably think I've been downloading too much stuff. What troubleshooting can I do to find out the real problem?\n\nIs there a network monitoring app that I use to see what brings my internet down when I'm downloading lots of files? Thanks.