Known issues

The following issues have been identified in FortiClient (Windows) 6.4.3. For inquiries about a particular bug or to report a bug, contact Customer Service & Support.

Install and deployment

Bug ID	Description
687647	After upgrading EMS with a remote SQL database, FortiClient cannot register to EMS.
691328	FortiClient upgrade does not upgrade AV engine when deployed through an EMS installer.

GUI

Bug ID	Description
686052	Add EMS connect/disconnect event information.

Zero Trust Telemetry

Bug ID	Description
587327	Device detection/VPN autoconnect frequency is too often.
673183	FortiClient needs to properly handle trying to register to FortiClient Cloud with invitation code with errors.
676923	DNS server on-Fabric detection rule does not work.
678388	Active Directory user logoff does not trigger tag message.
683097	FortiClient shows incorrect connection details.
689111	Changed username, phone number, and email in avatar page do not show in EMS endpoint details page.
689727	Zero Trust tag for Windows Defender does not work on Windows 7.
690457	FortiClient (Windows) fails to migrate from one site to another within the same EMS.
690679	EMS cannot tag endpoint based on nested Active Directory groups.
691966	EMS doe snot assign profile to endpoint after user switches from local to domain user account.
693618	On-/off-fabric calculations do not work with some conditions upon endpoint reboot.

Malware Protection and Sandbox

Bug ID	Description
667964	Protected files may already have been encrypted and fail to be restored when FortiClient detects and suspends the suspicious process.
668719	Realtime protection on Citrix VDA server blocks remote sessions.

Remote Access

Bug ID	Description
617420	Support remote access VPN with prelogon without user interaction.
627339	FortiClient (Windows) fails to establish VPN connection with SAML login if FortiOS SSL VPN Require Client Certificate setting is enabled.
637303	Certificate-only SSL VPN tunnel displays popup with Empty username is not allowed error.
643083	Dual SSL VPN certs with the same name.
649426	IPsec/SSL VPN per-app VPN split tunnel does not work properly.
649688	Website with HTTP defined in `<fqdn>` does not work properly with per-app VPN split tunnel.
665426	SAML SSL-VPN in Tunnel Mode broken when using ADFS+DUO 2FA solution
671091	IPsec VPN stops traffic to internal network immediately after connecting to a Citrix workspace or RDP.
677766	When VPN tunnel goes down, the single-host route for the VPN server stays.
681399	IPsec VPN autoconnect does not work after an automatic frequency change.
682675	SSL VPN users cannot set new PIN after it expires with RSA RADIUS authentication.
684913	SAML authentication on SSL VPN with realms does not work.
685951	FortiClient (Windows) does not use fallback server IP address when Show VPN before Logon is enabled.
686908	After updating FortiClient, users cannot connect to VPN.
688043	VPN before logon does not display FortiToken request prompt.
688844	FortiClient (Windows) drops SSL VPN connection after enabling EMS tag authentication on SSL VPN.
689163	IPsec VPN RSA token rekey does not work.
689176	IPsec VPN failover to SSL VPN when VPN before logon does not work properly.
689936	FortiClient (Windows) displays GUI issue when connecting to IPsec VPN using tray.
690057	FortiClient (Windows) does not display Error: Wrong Credentials message for IKEv2.
693687	FortiClient does not register any interface IP addresses to the DNS server when SSL VPN tunnel is up.
714688	User cannot log in to IPSec VPN when password includes umlaut.

Web Filter

Bug ID	Description
689182	FortiClient (Windows) blocks access to Office 365 or Microsoft sites.

Logs

Bug ID	Description
671461	FortiClient (Windows) does not have debug logs about FortiSandbox file submission.

Other

Bug ID	Description
649168	Windows crashes when Safetica DLP 9.6.55 and FortiClient are installed together.
673671	fmon.exe locks with writers some files stored in excluded folders.
686139	Console fails to open when double-left-clicking the tray icon.
691564	FortiShield causes third party application performance issues.

Known issues

The following issues have been identified in FortiClient (Windows) 6.4.3. For inquiries about a particular bug or to report a bug, contact Customer Service & Support.

Install and deployment

Bug ID	Description
687647	After upgrading EMS with a remote SQL database, FortiClient cannot register to EMS.
691328	FortiClient upgrade does not upgrade AV engine when deployed through an EMS installer.

GUI

Bug ID	Description
686052	Add EMS connect/disconnect event information.

Zero Trust Telemetry

Bug ID	Description
587327	Device detection/VPN autoconnect frequency is too often.
673183	FortiClient needs to properly handle trying to register to FortiClient Cloud with invitation code with errors.
676923	DNS server on-Fabric detection rule does not work.
678388	Active Directory user logoff does not trigger tag message.
683097	FortiClient shows incorrect connection details.
689111	Changed username, phone number, and email in avatar page do not show in EMS endpoint details page.
689727	Zero Trust tag for Windows Defender does not work on Windows 7.
690457	FortiClient (Windows) fails to migrate from one site to another within the same EMS.
690679	EMS cannot tag endpoint based on nested Active Directory groups.
691966	EMS doe snot assign profile to endpoint after user switches from local to domain user account.
693618	On-/off-fabric calculations do not work with some conditions upon endpoint reboot.

Malware Protection and Sandbox

Bug ID	Description
667964	Protected files may already have been encrypted and fail to be restored when FortiClient detects and suspends the suspicious process.
668719	Realtime protection on Citrix VDA server blocks remote sessions.

Remote Access

Bug ID	Description
617420	Support remote access VPN with prelogon without user interaction.
627339	FortiClient (Windows) fails to establish VPN connection with SAML login if FortiOS SSL VPN Require Client Certificate setting is enabled.
637303	Certificate-only SSL VPN tunnel displays popup with Empty username is not allowed error.
643083	Dual SSL VPN certs with the same name.
649426	IPsec/SSL VPN per-app VPN split tunnel does not work properly.
649688	Website with HTTP defined in `<fqdn>` does not work properly with per-app VPN split tunnel.
665426	SAML SSL-VPN in Tunnel Mode broken when using ADFS+DUO 2FA solution
671091	IPsec VPN stops traffic to internal network immediately after connecting to a Citrix workspace or RDP.
677766	When VPN tunnel goes down, the single-host route for the VPN server stays.
681399	IPsec VPN autoconnect does not work after an automatic frequency change.
682675	SSL VPN users cannot set new PIN after it expires with RSA RADIUS authentication.
684913	SAML authentication on SSL VPN with realms does not work.
685951	FortiClient (Windows) does not use fallback server IP address when Show VPN before Logon is enabled.
686908	After updating FortiClient, users cannot connect to VPN.
688043	VPN before logon does not display FortiToken request prompt.
688844	FortiClient (Windows) drops SSL VPN connection after enabling EMS tag authentication on SSL VPN.
689163	IPsec VPN RSA token rekey does not work.
689176	IPsec VPN failover to SSL VPN when VPN before logon does not work properly.
689936	FortiClient (Windows) displays GUI issue when connecting to IPsec VPN using tray.
690057	FortiClient (Windows) does not display Error: Wrong Credentials message for IKEv2.
693687	FortiClient does not register any interface IP addresses to the DNS server when SSL VPN tunnel is up.
714688	User cannot log in to IPSec VPN when password includes umlaut.

Web Filter

Bug ID	Description
689182	FortiClient (Windows) blocks access to Office 365 or Microsoft sites.

Logs

Bug ID	Description
671461	FortiClient (Windows) does not have debug logs about FortiSandbox file submission.

Other

Bug ID	Description
649168	Windows crashes when Safetica DLP 9.6.55 and FortiClient are installed together.
673671	fmon.exe locks with writers some files stored in excluded folders.
686139	Console fails to open when double-left-clicking the tray icon.
691564	FortiShield causes third party application performance issues.

Secure Networking

Hybrid Mesh Firewall

NOC Management

LAN

WAN

Unified SASE

Single Vendor SASE

Cloud Network Security

Secure Endpoint Connectivity

Web Application / API Protection

Security Operations

Security Operations Automation

Identity

Early Detection & Prevention

Secure Networking

Hybrid Mesh Firewall

NOC Management

LAN

WAN

Communication & Surveillance

Unified SASE

Single Vendor SASE

Secure Endpoint Connectivity

Cloud Network Security

Cloud-Native Security

Web Application / API Protection

Security Operations

Security Operations Automation

Endpoint

Data Protection

Identity

Email

Early Detection & Prevention

Expert Services

Edge Firewall

Orchestration & management

SD Branch

Application Delivery

Single Vendor SASE

Secure Endpoint Connectivity

Secure Private Access

Thin Edge

Identity

Application Gateway

Enterprise Asset Management

Endpoint Agent

Agentless Security Posture

Identity

Wireless

Switching

Identity

Privilege Acccess Management

Next Generation Firewall

Orchestration & management

Expert Services

Web Application / API Protection

All

All

Account Management

SAAS Management

SAAS Application Security

Managed Services

Platform as a service (PAAS)

Other SAAS Services

4D Pillars

Cloud

Popular Solutions

All Products

(Windows) Release Notes

Known issues

Known issues

Install and deployment

GUI

Zero Trust Telemetry

Malware Protection and Sandbox

Remote Access

Web Filter

Logs

Other

Known issues