Troubleshooting Tip: HA status 'Unknown'

[dkochhar]

Description	This article describes how to resolve the HA status 'Unknown' error.
Scope	FortiGate.
Solution	The GUI is showing the HA status as 'Unknown': The  possible causes of this are as follows: The Secondary FortiGate is running a different firmware version:  Run the following commands on both firewalls to confirm the firmware version:  get system status    Refer to this article for accessing the secondary unit in the cluster: Technical Tip: How to access secondary unit of HA cluster via CLI The primary is on v7.4.7 as follows: cgw-pri-XXXXX-gatech # get system status Version: FortiGate-61F v7.4.7,build2731,250120 (GA.M) <------------ First GA patch build date: 230509 Security Level: High Firmware Signature: certified The secondary is on v7.4.5 as follows: cgw-sec-XXXX-gatech # get system status Version: FortiGate-61F v7.4.5,build2702,240916 (GA.M) <--------- First GA patch build date: 230509 Security Level: 2 Firmware Signature: certified If the split-brain is present: Refer to this KB article for more info on split-brain issue: Technical Tip: High Availability - Split Brain If ha and mgmt interface are used as hbdev ports: Refer to this KB article for more info: Technical Tip: HA out-of-sync and 'No route to host' error when accessing secondary device from CLI If it is required to revert the HA cluster to the previous firmware: Refer to this KB article for more info: Technical Tip: How to revert HA cluster unit to the previous firmware image