Sorted, it was a loose Galvanic isolator.
I'm on Vivid 200 and not getting online most of yesterday and today, area 09 North Lanarkshire. What's going on? Self test says nothing wrong as does status page. Resetting S hub2 makes no difference.
Downstream DS-1 DS-2 DS-3 DS-4 DS-5 DS-6 DS-7 DS-8