Table 16:
Symptoms Probable causes Solution
Diagnostics on Local HMI:
Central Account Manager
Server status will be indicated
as Offline.
Security Event: 3810 CAM
Server communication failed.
Server(s) not reachable Check if LDAP server is up
and running
Check IED connection
Authentication will continue to work based on the latest local
LDAP Replica if replication is enabled. After reconnection
with the server(s), authentication will again run via the LDAP
server and the local replica will be updated.
IEC15000356 V1 EN-US
Figure 64: Replication status
6. Local replication failed
1MRK 511 399-UEN B Section 5
Central Account Management
670 series 2.2 IEC 77
Cyber security deployment guideline
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