No devices shown on Firewall Analyser after configuring Fortigate

No devices shown on Firewall Analyser after configuring Fortigate

Good morning,

We are currently configuring the latest version of Firewall Analyser with a Fortigate 1500D.  The syslog server is up on port 1514 and the fortigate has been configured in line with the instruction here, http://help.fwanalyzer.com/configure-fortinet.  However the list of devices remain empty.  I have restarted the service a couple of times now.  The Fortigate is showing that the logs are being sent.  The firewall and the receiving server are on different subnets.

I hope you can help.

regards
Martin