Re: No port is open after setting up a SSL VPN Cli...

jera · 12-22-2025

Description This article explains how to get back into the FortiGate GUI after multiple HTTPS processes caused a high CPU utilization. Scope FortiGate. Solution Obtain physical access to the FortiGate and connect to it via console cable. Follow this ...

jera · 12-17-2025

Description This article indicates why a network conflict with an administratively down interface prevents FortiGate from properly routing traffic. Scope FortiGate. Solution Sample Topology: DMZ port 1 <> FortiGate <> IPSEC Tunnel <> (Remote Subnet) ...

jera · 11-25-2025

Description This article explains how adding source-ip can resolve the problem when a remote FortiClient user's IP address cannot be assigned via external DHCP. Scope FortiGate. Solution Topology: 10.47.5.0/20 -> WAN. 10.160.0.0/20 -> DMZ (where the ...

jera · 11-19-2025

Description This article describes the issue of creating a DHCP reservation within the same subnet. Scope FortiGate v7.4.9/v7.6.4. Solution Users may encounter an error: 'Http failure response for https:///api/v2/cmdb/system.dhcp/server/2/reserved-ad...

jera · 08-20-2025

Description This article describes how to create a wireless-only dedicated network called Tunnel Mode. The client traffic is tunneled back to the FortiGate over CAPWAP and managed centrally. Scope FortiGate v7.4.8 Solution Navigate to WiFi Controller...

jera · 06-30-2024

Hi @sheerazali, You may refer to this article to help you determine the most appropriate release of FortiOS based on the product you have. https://community.fortinet.com/t5/FortiGate/Technical-Tip-Recommended-Release-for-FortiOS/ta-p/227178 For the k...

jera · 06-26-2024

Hello @kerryball, Can you help to share what is the exact error you got? Also, please help to share the output of the following: diagnose hardware sysinfo vm fullexe ping service.fortiguard.netexe ping update.fortiguard.net If both requirements above...

jera · 04-02-2024

Hello @Yayat1 1. Have you enabled split dns? 2. When you connect to SSLVPN, can you run nslookup to your internal domain and share the result?

jera · 03-14-2024

Hello @sagvan , Good day! It is a known issue on 7.4.2 and 7.4.3. The fix will be released on version 7.4.4. The current available workaround is to use CLI only. https://community.fortinet.com/t5/FortiGate/Troubleshooting-Tip-SD-WAN-Rules-GUI-Keep-Lo...

jera · 03-13-2024

Hi @systemgeek1 , Make sure to configure firewall policy too. You can check this administration guide on how to properly setup SSLVPN: https://docs.fortinet.com/document/fortigate/7.4.3/administration-guide/307303/ssl-vpn-split-tunnel-for-remote-user...

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Troubleshooting Tip: Unable to access FortiGate GUI because of high CPU due to httpsd process

Technical Tip: FortiGate is unable to route the traffic correctly due to IP conflict with administratively down interface

Technical Tip: Role of DHCP relay source-IP on IPSEC with external DHCP server

Troubleshooting Tip: Failure to create DHCP reservation within same subnet/netmask on DHCP monitor

Technical Tip: How to setup a wireless network on FortiGate using Tunnel-Mode SSID

Re: FortiGate Upgrade | from v7.4.2 to v7.4.3

Re: When creating new VMs on Promox 8.x or higer , the VM license validation fails for FortiOS

Re: SSL VPN

Re: SD-WAN Rules Page Doesn't Load - 100F, Version 7.4.3