Router is Asus RT-AC66U. IPTV doesn't work when WAN is PPPoE. If WAN is Static IP then IPTV works fine. The original firmware 3.0.0.4.378.9533 (2016/01/28) fixed Multicast issue when WAN is PPPoE/ PPTP/ L2TP. After click button Apply changed options router thinking very long time and login out itself. Please fix it. Thanks.