pfSense

Perhaps this is a configuration issue, or a bug introduced during the 2.4 update.

I am now receiving the following error message: "no auto-selected prefix on interface igb0_vlan92, disabling advertisements.
As a consequence radvd never distributes a prefix, to any of the configured vlans. I do not believe this behavior was present in 2.3, but could be mistaken.

I am forced to manually restart radvd every time to have prefix delegation work at reboot. Once done, prefixes are delegated properly to the vlans.

I am using assisted mode for the DHCPv6 server. The WAN interface is configured WITHOUT advanced configuration options, and I am requesting a prefix size of 56 with a hint.

Save for boot time, prefix delegation works fine.