We use wireguard for VPN between sites. Two of our sites have DHCP addresses while others have static public IP addresses.
To enable connectivity, the sites with static IP addresses, under wireguard endpoint connection don't have the other party address, as this is not known.
After upgrading a site with static IP, we noted that the two sites with DHCP would not connect back to this site. I tried restarting the wireguard at both ends. When checking wireguard status, the DHCP site is sending traffic to the static IP one, but nothing being received.
Note that this is happening with 24.7.1, as the other sites under 24.7_9 are not displaying this behaviour.
Nevermind. I had my firewalls rules misconfigured.