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URGENT: FortiGate 401E Daily System Hang – Console Unresponsive

We are experiencing a critical and recurring issue with our FortiGate 401E.The device hangs once or twice daily Issue has been ongoing for ~2 years During the hang: No traffic passes through the firewall GUI and SSH become inaccessible Console is c

934

2 hours ago

S

SanyaNew Member

It is not possible to delete rogue devices from the FortiNAC database if there are too many

Lost Connection to SSID

Hi,I am new to Fortinet, and we have been unable to connect to our SSIDs since I did an upgrade to v7.6.6.It takes very long and often fails. When it works the connection is very slow with high packet loss (~85%). Has anyone else experienced this? Wh

mbasExplorer II

Hi all, I am installing FortiNAC in a large environment and I added the Aruba WLC to FortiNAC without any issues. 3 days later, FortiNAC performed L2 pooling and discovered over 400,000 rogue hosts. After that, I disabled L2 pooling for the WLC, whic

301

2 hours ago

F

FarinaAhmedNew Member

Fortinet FortiDefender Rewards

Hi Everyone, I want to know where is the rewards section for the Forti Defender Community? Regards Farina Ahmed

meriemNew Member

Mismatch Between Source and Device Columns in FortiView (FortiOS 7.4.11)

After upgrading the firewall to FortiOS v7.4.11, I noticed inconsistencies in FortiView. For example, the information displayed in the Source column does not match what is shown in the Device column.As shown, the IP address in the Source column ends

451

5 hours ago

wukalju2New Member

FortiAuthenticator 6.6.x > 8.0.x upgrade

Hi everyoneWe will soon be upgrading our FAC instance from 6.6.x to (probably) 8.0.2Running a 2 node cluster, both are VMs.From what I can see, it should be a direct upgrade path without any inbetween jumps.I will read through the release notes, know

2522

tomeksNew Member

Forticlient Windows upgrade problem - Stop service

I am automatically updating FortiClient for Windows from version 7.4.5 to 7.4.6. On about 50% of the test computers, the installation process stops at: “Stop services.” I also tried doing it manually by running the installer file, but in that case it

1291

tanalgaovNew Member

FortiOS and CVE-2026-31431

Hey folks. I believe FortiOS runs some modified form of the Linux kernel. I'm not sure if that's true though. (Is it?) If you haven't heard, CVE-2026-31431 was announced today and many of us are scrambling to patch Linux servers.If FortiOS is running

3161

HazemibraNew Member

Fortiauthenticator usage profile not matching actual usage

Hello,Currently our Fortiauthenticator is on version 6.6.8, and we have an issue in which usage on the user is not matching actual usage of the firewall - resulting in the user being disconnected due to daily quota consumption. We have Daily limit pr

251

kdotExplorer

FS108 - Cannot access 192.168.1.99 for inital setup

Have an FS108.Reset the FS108 to factory defaults using paperclip + reset button.Manually assigned my laptop Ethernet adapter IP address 192.168.1.1 mask 255.255.255.0 GW 192.168.1.99Connected Ethernet cable between my laptop and port 1 on FS108.Open

shijugVisitor III

URGENT: FortiGate 401E Daily System Hang – Console Unresponsive

We are experiencing a critical and recurring issue with our FortiGate 401E.The device hangs once or twice daily Issue has been ongoing for ~2 years During the hang: No traffic passes through the firewall GUI and SSH become inaccessible Console is c

SanyaNew Member

Lost Connection to SSID

Hi,I am new to Fortinet, and we have been unable to connect to our SSIDs since I did an upgrade to v7.6.6.It takes very long and often fails. When it works the connection is very slow with high packet loss (~85%). Has anyone else experienced this? Wh

mbasExplorer II

It is not possible to delete rogue devices from the FortiNAC database if there are too many

Hi all, I am installing FortiNAC in a large environment and I added the Aruba WLC to FortiNAC without any issues. 3 days later, FortiNAC performed L2 pooling and discovered over 400,000 rogue hosts. After that, I disabled L2 pooling for the WLC, whic

301

2 hours ago

F

FarinaAhmedNew Member

Fortinet FortiDefender Rewards

Hi Everyone, I want to know where is the rewards section for the Forti Defender Community? Regards Farina Ahmed

meriemNew Member

Mismatch Between Source and Device Columns in FortiView (FortiOS 7.4.11)

After upgrading the firewall to FortiOS v7.4.11, I noticed inconsistencies in FortiView. For example, the information displayed in the Source column does not match what is shown in the Device column.As shown, the IP address in the Source column ends

451

5 hours ago

wukalju2New Member

FortiAuthenticator 6.6.x > 8.0.x upgrade

Hi everyoneWe will soon be upgrading our FAC instance from 6.6.x to (probably) 8.0.2Running a 2 node cluster, both are VMs.From what I can see, it should be a direct upgrade path without any inbetween jumps.I will read through the release notes, know

2522

tomeksNew Member

Forticlient Windows upgrade problem - Stop service

I am automatically updating FortiClient for Windows from version 7.4.5 to 7.4.6. On about 50% of the test computers, the installation process stops at: “Stop services.” I also tried doing it manually by running the installer file, but in that case it

1291

tanalgaovNew Member

FortiOS and CVE-2026-31431

Hey folks. I believe FortiOS runs some modified form of the Linux kernel. I'm not sure if that's true though. (Is it?) If you haven't heard, CVE-2026-31431 was announced today and many of us are scrambling to patch Linux servers.If FortiOS is running

3161

HazemibraNew Member

Fortiauthenticator usage profile not matching actual usage

Hello,Currently our Fortiauthenticator is on version 6.6.8, and we have an issue in which usage on the user is not matching actual usage of the firewall - resulting in the user being disconnected due to daily quota consumption. We have Daily limit pr

251

kdotExplorer

FS108 - Cannot access 192.168.1.99 for inital setup

Have an FS108.Reset the FS108 to factory defaults using paperclip + reset button.Manually assigned my laptop Ethernet adapter IP address 192.168.1.1 mask 255.255.255.0 GW 192.168.1.99Connected Ethernet cable between my laptop and port 1 on FS108.Open

423

7 hours ago

jheadley_FTNTStaff

Technical Tip: Inbound email to mail server protected by FortiGate is not logged or inspected by Anti-Spam profile

Description   This article describes that when using an anti-spam profile on FortiGate, users may notice some inbound emails are not being logged under the anti-spam security logs.  In addition, some of the emails that are not logged may al

zendodgStaff

Troubleshooting Tip: 'Modem Error' log on FortiExtender

DescriptionThis article describes the circumstances behind a 'Modem Error' on FortiExtender.ScopeFortiExtender 7.4.7 and beyond.SolutionIn FortiExtender 7.4.7 and beyond, an error may be observed where it does not receive any connection:Log:type="eve

60

1 day ago

gmonteStaff

Technical Tip: MAC address ageing setting and behavior on FortiGate

DescriptionThis article describes the behavior of the mac addresses connected to the FortiSwitch shown on the FortiGate when the command diagnose switch-controller mac-cache show is run.ScopeFortiGate.SolutionWhen the command diagnose switch-controll

190

1 day ago

bbaeStaff

FortiSOAR

Troubleshooting Tip: Unable to log in to GUI with error 'Error verifying magic file'

DescriptionThis article describes how to resolve an issue where users are unable to log in to the FortiSOAR GUI and receive the error message:"Error verifying magic file".ScopeFortiSOAR.SolutionConfirm that the device UUID matches the one value store

70

Technical Tip: How to perform different actions to filter keywords in email

alyaStaff

FortiMail

DescriptionThis article describes how to configure different actions in Fortinet FortiMail to filter emails containing specific keywords by using the Data Loss Prevention (DLP) feature.ScopeFortiMail.SolutionIn some environments, administrators may r

30

maguilarStaff

Troubleshooting Tip: Resolving issues with connection to published services through a VIP

DescriptionThis article describes issues connecting to published services through a Virtual IP (VIP) and explains how to resolve them. The user may experience problems when trying to access published services due to incorrect VIP and IPPool configura

700

Troubleshooting Tip: Initial troubleshooting steps for GUI pages stuck loading in FortiPAM

emmanuelgonzalez914Staff

FortiPAM

DescriptionThis article describes initial troubleshooting steps when pages in the ForiPAM GUI remain loading indefinitely and no information is displayed. This behavior can affect sections such as Monitoring -> User Monitoring, including the User

70

Technical Tip: ERSPAN port for trunks on FortiSwitch in FortiLink mode

zendodgStaff

FortiSwitch

DescriptionThis article describes how to monitor traffic in an ISL trunk for ERSPAN.ScopeFortiSwitch in FortiLink mode.SolutionOne of the rules on mirror ports is that mirror sources cannot be mirror destinations.In FortiLink mode, RSPAN and ERSPAN s

60

Troubleshooting Tip: Devices unexpectedly deleted from Inventory View

cmaheuStaff

FortiNAC-F

DescriptionThis article describes why devices modeled in a FortiNAC inventory may unexpectedly disappear.ScopeFortiNAC v9.x, FortiNAC-F 7.x.SolutionExample 1:Switch A, B, and C are modeled in the Inventory.Switch D is added.Switch A is no longer list

720

FTNT_FortiJanStaff

Technical Tip: How to display interface traffic history in FortiGate CLI

DescriptionThis article describes how to display traffic history data for three different time periods in FortiGate CLI which might be useful when troubleshooting FortiGate GUI Interface Bandwidth widget issue or when validating bandwidth utilization

270