WL-R320 Series Router User Manual
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The router support to check 3 test addresses max one time.
If ICMP is failed, the router will send ICMP as Each Query Timeout.
If ICMP is reachable, the router will send ICMP as Test Interval.
For example.
If both 208.67.222.222 and 8.8.8.8 are unreachable, the router will check the test address 5 times as
interval 5s. It will switch to 4G link. When one of 208.67.222.222 and 8.8.8.8 is reachable, it will switch
back to WAN link.
4.2 Lock Band
Click Network--->LTE GUI, Modem Setting to enter Lock Band GUI.