Thanks for your post and welcome to the forums. It's great having you on board with us in the Community although I am sorry to hear you are having an issue streaming BT Sport.
The first thing to check is that you are streaming BT Sport from channel 531 - 534. These are the SD versions of the channel which are streamable. Currently there is no HD streaming so if you're trying from channel 527 - 530 then you won't have any luck.
You've mentioned you have reassigned your device, your changes reset at midnight so you will be able to re-register a previous device then
Come back and let me know how you get on.
Kath_F Forum Team
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