Previously I created thread in category installing and using Openwrt due to not operational WAN port when router is connected to modem. Teoubleshooting leads to hardware issue.
So the board is SECO A44 with 2xI210 Gigabit interface. This hardware is running x86 openwrt distro. Problem is with eth1 interface - when connected to modem, there is no Network connection (interface gets ipv4 address from modem, in normal conditions it should work right now) the solution is to connect eth1 to modem via different router.... But I am not interested in it.
For test there was installed ubuntu 18 lts in that board with same result as in Openwrt - eth1 still does not work with modem - eht0 works fine.
I have readed about I210 issues and also find one thread in Intel forum related to SECO A44 eth1 not working interface but with no solutions.
Does anyone know what can be done with this board?