1. update to build r52095
2. delete the swconfig commands
3. activate the "switch config" tab
4. set the WAN port to VLAN2
5. set the LAN ports to VLAN1
6. rename VLAN2 to VLAN100
7. enable tagging for the WAN port
8. in the networking tab change the WAN port to VLAN100
9. reboot the router
10. post the output of "swconfig dev switch0 show"