No Power LEDS after unplugging?

Greetings,

I have been using the Plugable UD-3900 for about six months now with and it has been such a great product with no issues. However the past week it has stopped working :frowning: The unit had the power unplugged when I was doing some cord management, surely that wouldn’t have killed it ? Any advice or suggestions would be greatly appreciated.
Thanks for your time.

MB