I had this today & the link displayed on the Roku/ now tv screen is incorrect at the moment . In order to log on & then enter your unique tv code you need to go to this link
Yes it looks odd but it’s what bt gave me to get me back onto the bt sport app via now/ Roku tv . I can definitely say it worked straight away , enter log in details then code
I would think bt are swamped with concerns over this issue
Going to either www.bt.com/device or auth.bt.com/device automatically redirects to the link you posted @NeilH2
I guess both of those links work , however it’s not the one you are directed to on the on screen prompts!! Also when using chat to get it resolved the advisor told me I could not watch bt sport via now tv , I could not make him understand I was using the BT Sport App . In the end I had to give up and call & so was given the link that took me to the correct screen to input the code from my tv screen. BT need to correct the link shown to one that takes you to the correct log on page & not show www.bt.com/device which at the moment is incorrect.
Sorry for any confusion
www.bt.com/device does not work , it directs you to bt login but no indication of where to input your code , the link link
I posted earlier that was given to me by bt sport support works .
, I tried with the original link for hours , nowhere to input the tv code , however at the time when I was talking to customer support a investigation report into this issue was made by the support assistant & I have since had notification from BT that the issue is resolved so maybe that’s why the link works now . Whilst on the call to BT support I was told that there has been a surge in reports of this issue . I can only surmise that this issue I had has now been rectified.