ZyXEL Communications ES 3500 Series - Troubleshooting for Multicast VLAN Registration

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11 Troubleshooting for Multicast VLAN Registration
Flowchart:
Access the switch using MVR.
Is the switch the active querier?
By default, querier is disabled on the Zyxel switch using IGMP Snooping. There are
two things that needs to be verified to check whether or not the switch is the active
querier.
IGMP querier mode is globally enabled.
Using Web GUI:
Figure 1 Advance Application > Multicast > IPv4 Multicast > IGMP Snooping