Is A Business Smart Hub 2 that different to my Business Smart Hub 1? Mines shows a steady white on bridge mode.
The help here https://btbusiness.custhelp.com/app/answers/detail/a_id/32860/~/what-do-the-lights-mean-on-my-bt-business-hub%3F
says, "Orange light - Your hub is working but isn't connected to the internet"