Here's a strange one. My son's friend brings his XBox 360 to play on. He connects it to our wifi using the 2G option. But when he connects, any other devices that are connected to our 5G are immediately kicked off and cannot reconnect, they can only reconnect to the 2G. Disconnect the Xbox and normality is resumed! Now, as a network manager I thought I'd have this sorted in no time but I'm no gamer so other than restoring the superhub, I can't think what else it might be. Has anyone had similar issues or can shed some light please?