Known issues

The following issues have been identified in FortiClient (Windows) 6.4.5. For inquiries about a particular bug or to report a bug, contact Customer Service & Support.

Install and deployment

Bug ID	Description
691328	FortiClient upgrade does not upgrade AV engine when deployed through an EMS installer.
716597	Installation using norestart parameter requests reboot.

Endpoint control

Bug ID	Description
723495	FortiClient loses connectivity to EMS when invitation code used for initial registration is deleted from FortiClient Cloud.

GUI

Bug ID	Description
665426	SAML SSL VPN in tunnel mode is broken when using AD Federation Services and Duo multifactor authentication solution.
689744	FortiClient (Windows) only displays VPN tunnel name after FortiClient (Windows) adds new IPsec VPN tunnels.
717476	EMS tag does not appear in FortiClient (Windows) GUI.

Zero Trust Telemetry

Bug ID	Description
652647	FortiClient fails to upload large diagnostic tool result file to EMS.
687611	FortiClient (Windows) should calculate AD group-based policy rule for tags.
690679	EMS cannot tag endpoint based on nested AD groups.
692385	After disconnecting from EMS, FortiClient should keep the EMS hostname/IP address in the GUI.
693928	After FortiClient (Windows) migrates to new EMS successfully, it does not remove original EMS from EMS list.
702660	Switching to a new AD user does not modify user details in EMS GUI Endpoints table.
705010	EMS shows endpoint with incorrect username.
714131	Migrating FortiClient to different server fails when connection key is enabled.
717482	FortiClient IPsec VPN client does not appear in dynamic address list on FortiGate.
718995	FortiClient does not register to EMS after silent installation.

Malware Protection and Sandbox

Bug ID	Description
516704	Antivirus should recognize Windows-signed files.
590688	FortiClient says that FortiSandbox scan does not support file type when extension is supported and enabled on FortiSandbox.
700396	FortiClient causes DVD driver to fail to load (code 38).
705761	FortiClient (Windows) does not block USB drives despite removable media access being configured to block Windows portable devices.
709238	Building Java projects takes twice as long when real-time protection is enabled.
710899	Saving an Excel file fails.
713557	Exceptions do not work for antiexploit module.

Remote Access

Bug ID	Description
637303	Certificate-only SSL VPN tunnel displays popup with Empty username is not allowed error.
671091	IPsec VPN stops traffic to internal network immediately after connecting to a Citrix workspace or RDP.
693687	FortiClient does not register any interface IP addresses to the DNS server when SSL VPN tunnel is up.
698407	VPN before logon does not work with IKEv2 and Extensible Authentication Protocol.
700092	VPN does not connect when in domain user account.
701552	SASE SIA tunnel reconnection issues after SASE SIA portal removes VPN user.
707882	IPsec VPN fails to automatically connect with Failed to launch IPsec service.
709001	SSL VPN host check validation does not work for SAML user.
710877	SSL VPN with SAML (Azure AD) and two gateways does not work.
711227	Per-user autoconnect starts to automatically connect before logging onto Windows.
711402	Per-user autoconnect is not established after logon and per machine autoconnect still keeps up.
714564	SAML connection stays in connecting state and never returns with error when FortiGate gateway is inaccessible.
714688	IPsec VPN login is impossible when password includes German umlauts.
716323	FortiClient (Windows) cannot connect to IPsec VPN with no response from GUI after machine wakeup.
716924	Azure multifactor authentication fails when redundant sort method is configured as ping or TCP round trip time.
717512	VPN disclaimer does not show during IPsec VPN connection.
717913	FortiSASE SIA VPN fails to reestablish after FortiSASE SIA-related components are upgraded.
718737	FortiClient is intermittently missing SSL VPN user credentials after Windows logon per user tunnel.
720559	When connecting to IPsec VPN through FortiTray, after inputting username/password in GUI, there is a 30 second delay before asking for user token.
723465	Profiles do not sync when using IPsec VPN phase 2 configuration.
723632	VPN icon does not display lock after connecting to IPsec VPN tunnel.
724092	match_type does not work when using VPN before logon.
725630	Upgrade converts wildcard certificate filter to simple certificate filter.

Vulnerability Scan

Bug ID	Description
630202	Vulnerability Scan cannot detect Zoom.exe installer.

Web Filter

Bug ID	Description
708855	GUI shows site is unavailable when blocked.
725852	FortiClient (Windows) does not block malicious websites when real-time protection is enabled but Web Filter is disabled.

Logs

Bug ID	Description
638227	Improve USB detections notifications.
716495	FortiClient does not log tag assigned/unassigned event.
717452	Diagnostic result does not display after diagnostic tool completes exporting the files.

Other

Bug ID	Description
716803	When logging into Windows as domain user, avatar does not show properly on FortiAnalyzer.
725631	Network interfaces on Windows 10 laptops stay unavailable after hibernation or sleep.
725710	FortiSSOMA does not send user identities to FortiAuthenticator.