The switch ports on the Cisco routers don’t appear to be as robust as a standard switch. All clients at a clients motor bank went down the other morning. After travelling on site, it turned out the problem was a bad cable end on one client. All seven devices connected to the same 8-port switch on the branch router, and this one bad cable took down all seven devices. I could move the faulty device from the router’s switch port to an external switch, and everything would work. I went ahead and replaced the bad cable end, and reconnected all devices to the router’s switchports.