Some devices can be a bit choosy and will only connect via WPS. Go on wireless settings on your box and forget the connection to your wireless network, if it then connects to BTfon or BTopenzone automatically forget those too and reboot your media box. Try pressing the "WPS button" on the home hub 5 router it will start to flash, then go back to your media box and connect to your ssid wireless network ensuring you input the correct password from your router card on back. You should hopefully be good
Code:
http://bt.custhelp.com/app/answers/detail/a_id/44213/~/how-do-i-create-a-wireless-connection-to-my-hub-3,-hub-4-or-hub-5-using-wps%3F
Another worthy mention if you have not done so already is to split your WiFi network on the homehub 5 so your ssid then becomes two, one for the 2.4ghz bandwidth and one for the 5ghz THIS is the one you really should be connecting your streaming devices to wirelessly as it is much faster and handles the streams more efficiently, then keep the 2.4ghz wireless for your phones/tablets/laptops etc in the household. This explains how you acheive this here but there are other guides with a quick Google if you don't get on with this, so effectively all you need to do is add -2.4ghz to the end of the 2.4ghz band ssid so this is what you will see when searching wireless in your house and then obviously add -5ghz to the end of the 5ghz ssid band, once applied you will then see 2 wireless networks in your house but is now much clearer which is which, have fun
Code:
http://www.expertreviews.co.uk/networks/1403054/bt-home-hub-5-settings-guide-how-to-get-more-speed-and-make-it-less-annoying