Troubleshooting Tip: Possible reasons for FortiCli...

sjoshi · 01-12-2026

Description This article describes how to identify the NPU IDs and determine the total number of NPUs available on a FortiGate device. Scope FortiGate. Solution In certain scenarios, it may be necessary to run monitoring scripts to collect NPU drop s...

sjoshi · 12-07-2025

Description This article describes the issue where DNS configuration changes pushed from FortiManager fail to apply on the FortiGate, how to identify the cause, and implement the appropriate fix. Scope FortiGate, FortiManager. Solution Current DNS co...

sjoshi · 12-07-2025

Description This article describes the FortiGate 6K Chassis firmware graceful upgrade timeout and how to adjust it under certain conditions. Scope FortiGate 6k Chassis. Solution During an upgrade with the default HA settings (uninterruptible-upgrade ...

sjoshi · 11-26-2025

Description This article describes methods to troubleshoot intermittent HA (High Availability) synchronization issues in FortiGate devices using FortiLightHouse. Scope FortiGate. Solution FortiLightHouse CLI (FlhCli) is a monitoring utility designed ...

sjoshi · 11-11-2025

Description This article describes how to load or reimage firmware on an individual FortiProcessor Card (FPC) in a FortiGate 6000 series chassis. Scope FortiGate 6k Chassis. Solution Firmware installation on a specific FPC may be required to correct ...

sjoshi · 01-05-2026

Hi @Jin-Gyu , FortiSASE only supports ikev2 and ikev1 is not possible. For FortiSASE's VPN IKEv2 on Android, you may refer below article if the endpoints are able to support fortisase features. https://docs.fortinet.com/document/fortisase/latest/matu...

sjoshi · 12-14-2025

hi @ss99 , Graceful restart can be helpful. may refer below article for more information: https://community.fortinet.com/t5/FortiGate/Technical-Tip-Configuring-FortiGate-HA-and-OSPF-graceful-restart/ta-p/189556

sjoshi · 09-30-2025

Hi @gorapr , Are you setting up site to site vpn or the dial up vpn. If you do not want to divert all the internet traffic towards the HUB then you can define specific static route for certain destination on the spoke to sent those traffic towards th...

sjoshi · 09-30-2025

Hi @sk4 , can you share the routing table output get router info routing-table details x.x.x.x >> where x.x.x.x is the neighbor IP and let me know which interface it should take

sjoshi · 09-25-2025

your issue is because of RPF failure can you share your routing table: get router info routing-table all

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Technical Tip: How to determine NPU IDs count on a FortiGate

Troubleshooting Tip: Unable to Push DNS Configuration from FortiManager to FortiGate

Technical Tip: SLBC Firmware Graceful Upgrade Timeout and Recommended Adjustments

Troubleshooting Tip: How to automate useful command to troubleshoot intermittent HA synchronization issue using FortiLightHouse

Technical Tip: Loading or reimaging Firmware on an Individual FPC in FortiGate 6000 Series Chassis

Re: FortiSASE IPsec VPN Setting.

Re: FortiGate A-P HA cluster with OSPF between VDOMs reduce failover time

Re: Advice for IPSec

Re: How select next hop for bgp control plane message incase ECMP Route via ike/32 Injection

Re: Fortigate - Traffic on backup WAN interfcae dropped

Troubleshooting Tip: Possible reasons for FortiCli...

Technical Tip: Allow the communication between end...

Troubleshooting Tip: Resolving 'Invalid Number' Er...

Troubleshooting Tip: Unable to Subscribe to FortiS...

Troubleshooting Tip: Captive Portal error 'The str...

Re: FortiSASE IPsec VPN Setting.

Re: Forti EMS vs FSSO

Re: firewall access log

Re: Failed to establish the VPN connection. (-5029...

Re: Active Directory Connector cannot connect but...

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