Are you located in Canada or the US? Just wondering how you're able to justify the shipping (which actually costs more than the item itself.)
I am in Europe, in the most expensive country in the world, where domestic shipping can quickly cost you 0.2-0.3 BTC

Also, I ordered a bulk of BEs in addition to several hubs, so the shipping cost became justifiable.
@Photon939: I added your setup to the custom mention list. Looks like more of us are going the "chop off the cable" route.
@atta2k15: Warning added. These hubs are usually shipped with 1A, and it seems for a reason. Wonder who thought of including an 8A AC adapter?!
@klondike_bar: See if the problem lies with the hub. Disconnect the ones on PC an run 6 units off the hub (3A total).