VPN established on failover not coming back to primary
I discovered a problem with the failover feature, where VPN sessions (clients) established on the failover WAN (during primary failure), do not switch back after the primary WAN recovers. In this case, you will see traffic on both WANs. This can be a problem when A) the standby WAN is slower, which effects the VPN sessions and B) the standby WAN is a cellular connection, since this will unnecessarily use cellular data.
The only solution I have found is to kill the standby WAN until the VPN sessions reestablish on the primary WAN.

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