Created on
11-13-2025
09:53 AM
Edited on
11-20-2025
09:54 PM
By
Jean-Philippe_P
| Description | This article describes the steps to troubleshoot and resolve the issue of an HA not synchronizing due to a wanopt mismatch. |
| Scope | FortiGate. |
| Solution |
Go to to System -> HA and hover over the Secondary to see what is out of sync.
The specific checksum can be checked using the following method.
From CLI: Run the command below on both units in the cluster and compare the checksum values:
diagnose sys ha checksum show root wanopt.global
If the checksum does not match, verify on each unit in the cluster if there are differences in the settings and ensure they match on both units. If they already are the same on both units, run the following commands to force a recalculation of the checksums.
To resolve the wanopt.settings mismatch, change the default 'default-id' in the WANOpt settings on the primary FortiGate by running the following commands:
config wanopt settings set host-id temp-id end
Once the change has been made on the Primary FortiGate, recalculate the checksum with the following command:
diagnose sys ha checksum recalculate
At this point, the cluster should be in sync again. |
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