Thanks @redls, you're absolutely right that this usually requires a log in each time.
You should be able to do this without the need for a dedicated app too, as the relevant login screen should pop up when you select the network or visit a web page.
As long as you're selecting BT Broadband rather than BT Business, and put in the same details you do for My BT, then you should be good to go 😊
Peter
Thanks @redls, your login details shouldn't be affected by a device change, but I appreciate a lot of people will have these saved, or use password managers.
If you continue to struggle though, you can reset your My BT Password here:
Peter
Use the "Forgot log in details" link on the MyBT page here:- MyBT
I'm really glad to hear that's sorted for you now @redls!
Thanks for coming back to let us know too 😊
Peter