To ensure proper communication between the RADIUS primary and RADIUS replicas, verify the following:
The Authentication Manager instances are connected to the network.
All hostnames and IP addresses are correctly configured so that the primary instance can resolve the replica instances by hostname and IP address, the replica instances can resolve the primary instance by hostname and IP address.
The firewalls between primary and replica instances allow communication on ports 1812 and 1813.
The system clocks on primary and replica instances are within ten minutes of each other. If the difference in time is greater than ten minutes the RADIUS primary cannot replicate data to the RADIUS replica.
You can check the replication status of a RADIUS server in the RADIUS Servers page of the Security Console.
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