16 is better than 8!

I received today, Saturday, 05.16.2015, less than 48 hours after the order, while it was announced for next Tuesday: Better than good!
I immediately installed to replace an 8-port 10/100 switch overwhelmed by a growing overpopulation. Everything went the first time, except a computer, connected to the end of one strand of a dozen meters long, which persist in remaining blind to the connection. Ethernet cable of poor quality? It started to walk when I inserted one of my old Netgear 5-port switches. Bizarre ...
Another detail: the ports are front with LEDs, and the power outlet on the other side, peculiarity that had escaped me. It is without doubt an ideal rack with patch panel, but for my shelf placement where everything comes from behind, it is not optimum: no direct visibility of LED (a mirror, perhaps?) And Check the mains cable from the front, not very decorative! And the supplied mains cable is of rigidity!