How about BT's own halo 4g backup thingy? Auto fallback if the fttp goes down, and it's only a tenner more a month (perhaps employee discount on that too?). Of course if BT have wider problems both might go down I guess.

In extremis you can always use a mobile - and if I remember right BT mobile go unlimited usage while your main line gets fixed. For this route you could perhaps keep a usb battery bank handy in case local power goes down - that's one route where your main connection might fail but the mobile one could stay up.

Edited by arfster (Wed 08-Dec-21 02:16:13)