Known issues

The following issues have been identified in FortiClient (Windows) 6.4.10. For inquiries about a particular bug or to report a bug, contact Customer Service & Support.

Avatar and social login information

Bug ID	Description
729140	FortiClient fails to work when trying to log in with Google, LinkedIn, or Salesforce.
894765	FortiClient (Windows) fails to display correct avatar after switching users.
897747	Endpoint profile does not display correct username when endpoint user is switched.

Install and upgrade

Bug ID	Description
773219	FortiClient (Windows) should not allow the user to uninstall it if settings are locked.
880132	FortiClient uninstall using msiexec command fails.

Application Firewall

Bug ID	Description
776007	Application Firewall conflicts with Windows firewall, causing issues updating domain group policies.

Endpoint control

Bug ID	Description
693928	After FortiClient migrates to new EMS successfully, it does not remove original EMS from EMS list.
723599	FortiClient uses FortiSASE egress IP address as public IP address.
789922	FortiClient (Windows) does not reattempt to register to EMS after license assignment until user shuts down or restarts FortiClient (Windows).

Logs

Bug ID	Description
820067	FortiClient forwards logs despide being completely disabled.

Zero Trust Telemetry

Bug ID	Description
683542	FortiClient (Windows) fails to register to EMS if registration key contains special character, such as " !"#$%&'()*+,-./:;<=>?@[\]^_`{|}~" .

Malware Protection and Sandbox

Bug ID	Description
650383	Number of blocked exploits attempts does not work properly.
760073	FortiClient (Windows) affects USB operation.

Remote Access

Bug ID	Description
743106	IPsec VPN XAuth does not work with ECDSA certificates.
758424	Certificate works for IPsec VPN tunnel if put in current user store but fails to work if it is on the local machine.
762986	If FortiClient (Windows) cannot reach the first remote gateway when connecting to a resilient tunnel from FortiTray, FortiClient does not use the second FortiGate to connect.
780938	SAML connection does not work for international connections.
782393	Application-based split VPN tunnel has issue when using VipWebAppServer.exe application.
786348	FortiClient shows error code -8 or -14 when Limit Users to One SSL-VPN Connection at a Time is enabled on FortiOS with SAML authentication.
790404	GUI is missing SAML button.
795334	Always up feature does not work as expected when trying to connect to VPN form tray.
841970	GUI gets stuck while connecting with SAML to SSL VPN with Azure Active Directory and Duo for multifactor authentication.
853368	The assigned SSL VPN IP address appears in FortiClient but is not assigned to SSL VPN FortiClient (Windows) virtual interface.
858696	FortiClient cannot connect to SSL VPN with SAML via satellite Internet service provider.
859140	SSL VPN with Cisco Duo requires user to retry connection multiple times.
894831	If user saves password in FortiClient (Windows), FortiClient (Windows) fails to renew expired password when connecting from FortiTray.
897614	FortiClient cannot show client certificates for SSL VPN when prompt on connect is enabled.

Performance

Bug ID	Description
778651	Large downloads and speed tests result in high latency, packet loss, and poor performance.

Web Filter and plugin

Bug ID	Description
781874	Website does not load with ERR_CONTENT_LENGTH_MISMATCH error.
793017	Web Filter option disconnects an application's underlying connection.
825633	Error occurs when revoking certificate accessing outlook.office365.com using Web Filter.
885310	When Web Filter blocks YouTube except for specific videos using URLs, FortiClient (Windows) allows user to access other YouTube videos by navigating within the page.

Zero Trust tags

Bug ID	Description
704234	Zero Trust tagging rule set syntax to check registry key value is unclear.
731525	FortiClient (Windows) does not properly detect Zero Trust tag for not having antivirus up-to-date.

Other

Bug ID	Description
749458	FortiClient (Windows) displays specific email address related to social network login using Gmail account.
874474	update_task does not start as scheduled and ISDB signature does not update.