Mobile Broadband Router Orange Light On 3g Mobile Broadband Router?

Orange light on 3g mobile broadband router? - mobile broadband router

The 3G router un''Edimax-6200Wg''
My broadband is the ZTE MF622 on 3 and compatible.
When I orange into the USB port of the light broadband connection. But the CD-Rom, which I is green with the router the light? Could not connect to the Internet. Why does the orange light? I've looked everywhere on the Internet, but no luck .. plz reply ASAP!