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trengsoba
New Member
June 17, 2026
Question

HA out of Sync v7.6.6

  • June 17, 2026
  • 3 replies
  • 120 views

Hi all,

Yesterday I noticed that my FortiGate HA cluster went into an out-of-sync state.

I tried recalculating the HA checksums on both nodes and also rebooted the secondary unit, but the cluster is still showing out of sync.

Has anyone experienced this before? Is this a known bug in FortiOS 7.6.6, or is there another troubleshooting step I might be missing?

FortiOS Version: 7.6.6 Build 3653

Any advice would be appreciated. Thanks!

    3 replies

    msanjaypadma
    Staff
    Staff
    June 17, 2026

    Hi ​@trengsoba .

    You can refer below document : 
     

     

    Thanks, Mayur Padma
    funkylicious
    SuperUser
    SuperUser
    June 17, 2026

    the 2 commands that helped in previous versions ( not 7.6.x ) . maybe it will do you some good too, i’ve ran them on both members just in case

    diagnose sys ha checksum recalculate
    execute ha synchronize start

    "jack of all trades, master of none"
    sjoshi
    Staff
    Staff
    June 18, 2026

    HI ​@trengsoba 

    You can go to the System > HA and hover over the out of sync status and it will show you what exactly is being out of sync.

    Can you attach that snap.

     

    Further perform below POA:

    On Pri:

    diagnose sys ha checksum recalculate
    execute ha synchronize start

     

    On Sec:

    diagnose sys ha checksum recalculate
    execute ha synchronize start

     

    You can take the Sec FGT access directly from Pri FGT CLI

    https://community.fortinet.com/fortigate-3/technical-tip-managing-individual-cluster-units-with-the-cli-command-execute-ha-manage-98720

    Thanks, Salon