I am facing this unique issue with one of my link which is terminated on firewall. Health check is configured as ICMP to 188.8.131.52and 184.108.40.206 surprisingly its being flapping cosistently and since the notification is enabled on appliance, we are being bombarded with notification alerts about getting connected and sometime link got disconnected.
Later to isolate we connected the link directly to laptop/modem and not a single drop noticed on the appliance. We kept it for monitoring almost for 4 hours and again no ICMP packet found dropped.
Again I put the link back on peplink and started getting alerts…
Could you please help me to isolate the issue?