Have you had any issues with the auto updater? I got rid of my Omnia after an auto-update broke DNS while I was away from home.
Ironically, went to Unifi after reading Troy's blogs about it - now regretting it immensely as the hardware is nowhere near as powerful as the Omnia.
Re:Mmm, Pi-hole
by tombrossman on Thursday September 27, 2018 @03:46PM
(#18087925)
This happened to me too, and what I learned is that the Omnia uses the Knot DNS resolver, which re-enables itself after updates and this breaks everything if you have made certain customisations.
The fix is to disable this with "echo 'Uninstall("knot-resolver", { priority = 60 })' >> /etc/updater/conf.d/user.lua" over SSH so it stays disabled. You can do this for any service you modified or disabled, and the documentation barely mentions this (it's a real showstopper bug until you diagnose it - no connectivity whatsoever).
Not cheap, and sometimes unforgiving if you don't know exactly what you are doing, but worth every penny in my opinion.
https://omnia.turris.cz/en/