PSA: Unifi IPSec site-to-site tunnels and DHCP
Bit of a PSA of sorts, as this is the second time that I have run into this particular issue. Scenario: You had a Unifi gateway such as a UDM Pro with a static IP address. You switched your WAN IP from static to dynamic, for whatever reason. (In my case it was a different ISP that doesn’t hand out actual static IPs, only DHCP reservations.) You may find that the router holds onto that old IP, and if you’re like me, you’ll be confused as hell. ...