ESET Management Console and Client, time of last connection was not updated

[SamQiu 0]

log from server ESET Client

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2021-03-03 06:59:50 Error: CReplicationModule [Thread 12d0]: InitializeFailOverScenario: Skipping fail-over scenario (stored replication link is the same as current)

2021-03-03 06:59:50 Error: CReplicationModule [Thread 12d0]: CAgentReplicationManager: Replication finished unsuccessfully with message: InitializeConnection: Initiating replication connection to 'host: "xx.xx.xx.xx" port: 2222' failed with: GetAuthenticationSessionToken: Failed to fetch device session token in timeReplication details: [Task: CReplicationConsistencyTask, Scenario: Automatic replication (REGULAR), Connection: xx.xx.xx.xx:2222, Connection established: false, Replication inconsistency detected: false, Server busy state detected: false, Realm change detected: false, Realm uuid: 3a0d5bb0-015c-4b8a-9f23-8cc700c9c4d8, Sent logs: 0, Cached static objects: 0, Cached static object groups: 0, Static objects to save: 0, Static objects to delete: 0, Modified static objects: 0]

2021-03-03 06:59:50 Warning: CReplicationModule [Thread 12d0]: GetAuthenticationSessionToken: Received failure status response: TEMPORARILY_UNAVAILABLE (Error description: session token temporarily unavailable, device is not enrolled yet)
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xx.xx.xx.xx is the server IP which installed Management Console. and the port 2222 is responding with telnet.  now have around 10 pc/server client has the connection issue, the time of last connection was not updated.