Quick update: I had an interactive support session with TP-Link support this week. They collected some tcp dumps from the EAP250. Seems they think the problem is related to hardware offloading. No...

@CuBiC @GPB CuBiC wrote The delay you mention is not a result of the RA interval, but because your EAP seems to drop the Router Solicitation your client sends to trigger a Router Advertisement....

FYI, TP-Link support sent me another beta firmware today that was supposed to fix the issue (1.0.0 Build 20221028 Rel. 54577). It doesn't work for me though. It seems to allow DHCPv6 Advertise...

@CuBiC Agreed. Still waiting for a firmware update. FYI, there's another thread about the issues here.

Yes, I've given them a link to this thread and pointed out it's affecting the EAP670 too.

Update: TP-Link have confirmed they can reproduce the issue in their lab. Anyone know from past experience how long it's likely to be for a fix (or at least beta firmware) to be released?