May 14 18:52:42 2021IGMPinfo<142>maximum join latency 9972 milliseconds, minimum join latency 8 milliseconds, average join latency 542 milliseconds
What IoT devices do you have at home? List all of them can be helpful. I am seeing something on your network is requesting to join a multicast group on the Internet. Do you have multiplayer gaming consoles and/or streaming IP TV services?
IGMP logs are unusual. I don't believe G1100 has complete IGMP capabilities. Other logs are quite normal.