Everything is connected correctly on the hub, and it only provides internet to my computer and not my brother's. All the lights are on, I even rebooted both computers, the modem, and the hub. And nothing is wrong with the equipment because I can exchange files with my friend's computer, with the same hub and ethernet cables. I didn't bother with the configurations because it suppose to be plug and play. Can anyone help me? It even worked before between my computer and my bro's but suddenly stopped working after I reformatted.