Note – If the WAN interface serves as the primary interface for another WAN interface as a Failover, the Connection Control
parameter will not be available to you to configure as the system must set it to “Auto-reconnect (Always on)”.
3.1.2.4 Network Monitoring
"ICMP Check" and "FQDN Query" are used to check the network status. When there is traffic on a connection, the checking
packet consumes bandwidth. The response time of reply packets may also increase. Enabling "Checking Loading" option will
stop the connection check when there is traffic on the internet. The router will then wait for another "Check Interval" and
then continue checking the interface again.
When the Network Monitoring function is enabled and the reply time is longer than Latency or if no response is received
before the Checking Timeout period, the "Fail" count register will be increased. If there are repeated failures and the Fail
count exceeds the Fail Threshold, the router performs the exception handling process and re-initializes the connection. If
there are no repeated failures, the network monitoring process will be start again.
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