chrome wrote WAN->IGMP proxy. i have same router but there's no igmp proxy!

guys i have the same router above are there a way to do multicasting? i tried to use smart share on my lg smart tv but the router seems not support that! in the other hand is this feature hardware or...

Model : Hardware Version : Firmware Version : ISP : i have this tplink router and i try to stream my videos by it from my computer to my smart tv as a local network, i know it should be my computer...