Suspect it might be the network discovery found in ntopng options. Turned it off for now…
2021-03-29T00:00:59 kernel lo0: promiscuous mode disabled
2021-03-29T00:00:59 kernel igb1_vlan20: promiscuous mode disabled
2021-03-29T00:00:59 kernel igb1: promiscuous mode disabled
2021-03-29T00:00:59 kernel igb1_vlan10: promiscuous mode disabled
2021-03-29T00:00:59 kernel igb0: promiscuous mode disabled
2021-03-29T00:00:59 kernel pid 83747 (ntopng), jid 0, uid 288: exited on signal 6
2021-03-29T00:00:46 sshd[2035] Connection closed by 192.168.10.1 port 45674
2021-03-29T00:00:46 sshd[2035] error: kex_exchange_identification: Connection closed by remote host
2021-03-29T00:00:46 sshd[2035] error: kex_exchange_identification: Connection closed by remote host
2021-03-29T00:00:46 sshd[34013] Connection closed by 192.168.10.1 port 45671
2021-03-29T00:00:46 sshd[34013] error: kex_exchange_identification: Connection closed by remote host
2021-03-29T00:00:46 sshd[34013] error: kex_exchange_identification: Connection closed by remote host
2021-03-28T11:00:27 kernel igb2: promiscuous mode disabled
2021-03-28T11:00:27 kernel lo0: promiscuous mode disabled
2021-03-28T11:00:27 kernel igb1_vlan20: promiscuous mode disabled
2021-03-28T11:00:27 kernel igb1: promiscuous mode disabled
2021-03-28T11:00:27 kernel igb1_vlan10: promiscuous mode disabled
2021-03-28T11:00:27 kernel igb0: promiscuous mode disabled
2021-03-28T11:00:27 kernel pid 49877 (ntopng), jid 0, uid 288: exited on signal 6
2021-03-28T11:00:10 sshd[71314] Connection closed by 192.168.1.1 port 2049
2021-03-28T11:00:10 sshd[71314] error: kex_exchange_identification: Connection closed by remote host
2021-03-28T11:00:10 sshd[71314] error: kex_exchange_identification: Connection closed by remote host
2021-03-28T11:00:10 sshd[62952] Connection closed by 192.168.1.1 port 25481
2021-03-28T11:00:10 sshd[62952] error: kex_exchange_identification: Connection closed by remote host
2021-03-28T11:00:10 sshd[62952] error: kex_exchange_identification: Connection closed by remote host
2021-03-27T01:00:37 kernel igb2: promiscuous mode disabled
2021-03-27T01:00:37 kernel lo0: promiscuous mode disabled
2021-03-27T01:00:37 kernel igb1_vlan20: promiscuous mode disabled
2021-03-27T01:00:37 kernel igb1: promiscuous mode disabled
2021-03-27T01:00:37 kernel igb1_vlan10: promiscuous mode disabled
2021-03-27T01:00:37 kernel igb0: promiscuous mode disabled
2021-03-27T01:00:37 kernel pid 97680 (ntopng), jid 0, uid 288: exited on signal 10
2021-03-27T01:00:10 sshd[79969] Connection closed by 192.168.1.1 port 17937
2021-03-27T01:00:10 sshd[79969] error: kex_exchange_identification: Connection closed by remote host
2021-03-27T01:00:10 sshd[79969] error: kex_exchange_identification: Connection closed by remote host
2021-03-27T01:00:10 sshd[75522] Connection closed by 192.168.1.1 port 17934
2021-03-27T01:00:10 sshd[75522] error: kex_exchange_identification: Connection closed by remote host
2021-03-27T01:00:10 sshd[75522] error: kex_exchange_identification: Connection closed by remote host