Thank you, Sir. it works on this plan. Now I want to have to enable IGMP into the specific VLAN on SSID.   Been followed this doc: https://documentation.meraki.com/General_Administration/Other_Topics/Multicast_support#IGMP_Support_on_the_Cisco_Meraki_Switch   But I want to know how to test the IGMP works. Since my AV vendor keeps saying to enable IGMP on AP. ... View more