The input port from the PC to the hub was so loose that the slightest movement could break the connection, I bought 4 ports a year ago, I have the same problem (3 ports still work, 1 fails, all LEDs don't light up), try again (tried another hub, it doesn't work for my setup), 7 ports have the same connection problem, I can feel loose when I first connect the cable, so when I it need to connect something to multiple drives already connected, causing the other drives to disconnect together, also try the same hub from another seller with the same problem, it seems to be specific to this hub. returned
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