Turris 1.x DHCP IPv4 on the local network did not want to allocate addresses after the update (e.g. Windows used automatic IP). I had to check “Force DHCP on this network even if another server is detected.” I have no other DHCP servers on the local network. IPv6 was fully functional. Even the default IPv4 gateway that shows up after entering ipconfig was surprisingly correct. Only client didn’t have assigned IPv4 address.