I want know the status of my products and to check the product warranty using the serial number. I need an URL to check it.These are the product i need to check for a warranty. FOC1638V4VXFOC1516X16QFOC1617V14XFDO1714P07CFDO1826P1YU

When I'm connecting the router to laptop, the port is showing up. But when I'm connecting the router to 100Mbps media converter, the port is showing down