Troubleshooting Tip: Getting error when trying to reload/refresh an Excel workbook file connected to SQL Database

The error message were appearing only when security profile IPS was enabled on the firewall policy. 

1. Run debug flow on the FortiGate CLI console.

diagnose debug reset 
diagnose debug disable
diagnose debug flow show function-name enable
diagnose debug flow show iprope enable
diagnose debug flow filter saddr x.x.x.x
diagnose debug flow filter daddr y.y.y.y
diagnose debug flow trace start 99999999
diagnose debug enable

To stop debug:

diagnose debug disable

diagnose debug reset 

2. Review the debug flow result and find if there is a log message msg="anti-replay check fails, drop".
3. If there is a log message msg="anti-replay check fails, drop" disable the anti-replay on the firewall policy.

config firewall policy

    edit x
        set anti-replay disable

    end

4. Once anti-replay is disabled on the firewall policy, the Excel file can now reload/refresh without any error.