These steps will demonstrate how to configure port WAN into LAN on UCR devices:
1) Go to Network >>LAN
2) Press on advanced settings:
**Pay attention that if you WAN connection (Operation mode is determande to wired it won’t let you change the WAN port to LAN**
Suppose to be configured for mobile or WIFI
You can check on status>> Network>> WAN & LAN that port WAN has been changed