@Virgo Hi! Yes, I enabled IGMP on router. I think a problem with ER605 is that IGMP is dedicated to WAN port, not LAN port used by me. Dominik

Hello Everyone! I've got a network built with two TP-Link devices: FW/Router ER605 v1 and switch TL-SG108PE. ISP provides me internet and IPTV on dedicated ONT ports - internet (port 1) and TV (ports...