pfSense: upgrading in Lab (or how to change WAN configuration and upgrade)
If you get a pfsense on your lab to upgrade it and none of the WAN lines are DHCP you need to follow these steps:
- Set Interfaces > WAN to DHCP

- Go to System > Routing and select the new WANDHCP gateway as the default

- Go to System > General and make sure the DNS server has the new WANDHCP gateway selected.

After the upgrade you need to undo the above ofcourse.