Support Forum
The Forums are a place to find answers on a range of Fortinet products from peers and product experts.
New Contributor

Device addition to Fortimanager

Dear Friends,


I am having issues with fortinet device to add it on Forti manager. I didn't add any device before that.


I have my firewall running with 6.0.x version, and fortimanager is running with 5.6.x, can I add my device or I need to keep the same OS on both? I can ping fortimanager from my firewall, but when I am trying to add, it is giving an error 'Probe failed'.


Do we need any policy or any particual port to be opened in policies. I am managing the firewall via trust interface. 


Kindly let me know what could be the possible cause.



Rajinder Parsad

New Contributor II

Hi Rajinder, 


- You need to make sure that the Fortimanager and Fortigates are of the same firmware version, or much better if FMG has a higher version number. It will really give you error messages as long as the versions are not the same , or the Fortigate's version is much higher. 


- No you don't need any policies in adding those devices, make sure that it is accessible / pingable by FMG. 


Please read the Release Notes for the FortiManager and Fortigate for more information. 


Hi Rajinder,


You will find the compatibility matrix here :


you will have a problem with a ADOM version (each ADOM has a FortiOS version), so an ADOM in version 5.6 will be able to manage 5.6 and 6.0 (but new feature of 6.0 won't be available and you will not able to do an "import policy"), but an ADOM in version 6.0 you won't be able to manage your 5.6 devices.


I recommend to wait a few days before upgrading to FMG 6.0.x, the new release 6.0.4 will be available this week (normally).




Select Forum Responses to become Knowledge Articles!

Select the “Nominate to Knowledge Base” button to recommend a forum post to become a knowledge article.

Top Kudoed Authors