I set up my Omnia without any problems via LAN4 - plugged it into my FTTP modem after configuring it, WiFi worked, WAN came up - a short while later there was an update which included the kernel and required a reboot. After that my LAN ports don’t seem to be working.
There’s no link light with any of the cables I have here, including the one I initially configured the Omnia with. The Foris UI doesn’t show any link either.
Interestingly, connecting lan4 to lan3 does make carrier show up (link lights go on , /sys/…/carrier goes to 1 for the interfaces in question): So could it be that it’s stopped auto-negotiating?