Model : TL-WA801ND

Hardware Version :

Firmware Version : 3.16.9 Build 151217

ISP : N/A

So I have a TL-WA801ND, and have been beating my head against a wall with this issue but realized what going on.

3.16.9 Build 151217 was supposed to fix "1.Fixed a bug that the device would enable IGMP proxy by default and it may influence IPTV."

Apparently this is still not fixed when Multi SSID is used, or something else is causing this device to block propagation of multicast from the Ethernet to the wireless on any of the SSIDs/VLANs

This breaks anything that uses multicast on the network including IPv6 RA/ND and such as that is multicast.

Switching device back to Single SSID allow multicast to work, but the mine reason I got this AP is for Multi SSID, but if it cant even forward multicast properly its useless.