I would like to add some screen capture for easy understanding.
- Go to Luci via our GUI
- Login Luci with the same password

- Go to =>Interface=>Network=>WAN click Edit
- Change eth0 to eth1
- Go to =>Interface=>Network=>Device=> configure br-lan
- Change eht1 to eth0
- Click Save and Apply
- Unplug all the ethernet cables and wait for 1.5 minutes





