I have TiVo box and Hub 3.0. TiVo is connected to my Philips Ambilight TV via HDMI cable in HDMI port 1. Quite frequently I get a TV message saying can not detect device on HDMI1. I can resolve this by either restarting my TiVo or by reinstalling my TV. Occasionally I can sort by changing the HDMI setting on my TV but that's not always the case.