WLAN is disabled yes, but not inoperable. I picked up this router again and I just realized that the WLAN can be enabled manually. So I have LAN and WLAN, but still no WAN which obviously important for Internet connection. I don't know if one of the five switch ports can be reconfigured to operate as WAN/uplink port.
I have upgraded the firmware from 17.01.4 (LEDE) to 18.06.4 (OpenWRT). That proved to be futile attempt to enable that WAN port.
Will this router ever get full OpenWRT support?