Switchover seems delayed on Balance 30

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Please check the following knowledge base on how the WAN health check work.

Health Check Mechanisms Against Link Failure

The objective of this article is to explain how the different health check methods work, and how to configure them. Health Checks are used to detect the Internet link’s logical connectivity. Without health checks, ISP routing issues may not be detected, thus failover may not perform smoothly. Health Check Methods: PING: The router will send a ICMP/PING packet to the specified IP address (or host name) to test WAN connectivity. DNS Lookup: The router will perform a DNS lookup to the specified…