Re: pihole... it almost seemed too easy a setup in the end. I disabled dhcp on the virgin hub and enabled it on the PiB and most ads are gone on all devices it seems without impacting much else as yet.
I had started to access that via ssh & vcn so i don't need keyboard/mouse/monitor on it but I'm not sure I've made things secure enough yet so have turned those back off for now.
I'm working through this list of tasks:
Have installed ufw on the pihole box but not enabled... would it be worth having on each device or is the pihole box enough as ours effectively the door to the outside world, even though every device still connects via the virgin router.
I'm having to learn lots so might be some daft questions, I'd started all this 5yrs ago with the box I'm now using for PiHole but got sidetracked quickly then so basically starting over.