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Table of Contents

FortiManager Firmware Upgrade Paths and Supported Models

For information about FortiManager support for FortiOS, see the FortiManager Compatibility chart in the Document Library at https://docs.fortinet.com/document/fortimanager/6.2.0/compatibility-with-fortios.

Before upgrading your device, see details in the applicable releases notes.

Firmware Version

Build Number

Upgrade From

6.0.5

0346

6.0.0-6.0.4

5.6.0-5.6.8

Supported models: FMG-200D, FMG-200F, FMG-300D, FMG-300E, FMG-300F, FMG-400E, FMG-1000D, FMG-1000F, FMG-2000E, FMG-3000F, FMG-3900E, FMG-4000D, FMG-4000E, FMG-VM64-MFGD; FMG-VM64, FMG-VM64-Ali, FMG-VM64-AWS, FMG-VM64-Azure, FMG-VM64-GCP, FMG‑VM64‑HV (including Hyper-V 2016), FMG-VM64-KVM, FMG-VM64-OPC and FMG-VM64-XEN (for both Citrix and Open Source Xen).

Note: FortiManager 6.0.5 does not support ADOM version 5.0. FortiManager 6.0.5 supports only ADOM versions 5.2, 5.4, 5.6, and 6.0.

6.0.4

0292

6.0.0-6.0.3

5.6.0-5.6.7

Supported models: FMG-200D, FMG-200F, FMG-300D, FMG-300E, FMG-300F, FMG-400E, FMG-1000D, FMG-2000E, FMG-3000F, FMG-3900E, FMG-4000D, FMG-4000E, FMG-VM64-MFGD; FMG-VM64, FMG-VM64-Ali, FMG-VM64-AWS, FMG-VM64-Azure, FMG‑VM64‑HV (including Hyper-V 2016), FMG-VM64-KVM, FMG-VM64-OPC and FMG-VM64-XEN (for both Citrix and Open Source Xen).

Note: FortiManager 6.0.4 does not support ADOM version 5.0. FortiManager 6.0.4 supports only ADOM versions 5.2, 5.4, 5.6, and 6.0.

6.0.3

0255

6.0.0-6.0.2

5.6.0-5.6.6

Supported models: FMG-200D, FMG-200F, FMG-300D, FMG-300E, FMG-300F, FMG-400E, FMG-1000D, FMG-2000E, FMG-3000F, FMG-3900E, FMG-4000D, FMG-4000E, FMG-VM64-MFGD; FMG-VM64, FMG-VM64-AWS, FMG-VM64-Azure, FMG‑VM64‑HV (including Hyper-V 2016), FMG-VM64-KVM, FMG-VM64-OPC and FMG-VM64-XEN (for both Citrix and Open Source Xen).

Note: FortiManager 6.0.3 does not support ADOM version 5.0. FortiManager 6.0.3 supports only ADOM versions 5.2, 5.4, 5.6, and 6.0.

6.0.2

0205

6.0.0-6.0.1

5.6.0-5.6.6

Supported models: FMG-200D, FMG-200F, FMG-300D, FMG-300E, FMG-300F, FMG-400E, FMG-1000D, FMG-2000E, FMG-3000F, FMG-3900E, FMG-4000D, FMG-4000E, FMG-MFGD; FMG-VM64, FMG-VM64-AWS, FMG-VM64-AWSOnDemand, FMG-VM64-Azure, FMG‑VM64‑HV (including Hyper-V 2016), FMG-VM64-KVM, and FMG-VM64-XEN (for both Citrix and Open Source Xen).

Note: FortiManager 6.0.2 does not support ADOM version 5.0. FortiManager 6.0.2 supports only ADOM versions 5.2, 5.4, 5.6, and 6.0.

6.0.1

0150

6.0.0

5.6.0-5.6.4

Note: Upgrade from 5.6.5 and later to 6.0.1 is not supported. You must upgrade from 5.6.4 and earlier.

Supported models: FMG-200D, FMG-200F, FMG-300D, FMG-300E, FMG-400E, FMG-1000D, FMG-2000E, FMG-3000F, FMG-3900E, FMG-4000D, and FMG-4000E; FMG-VM64, FMG-VM64-AWS, FMG-VM64-Azure, FMG‑VM64‑HV (including Hyper-V 2016), FMG-VM64-KVM, and FMG-VM64-XEN (for both Citrix and Open Source Xen).

Note: FortiManager 6.0.1 does not support ADOM version 5.0. FortiManager 6.0.1 supports only ADOM versions 5.2, 5.4, 5.6, and 6.0.

6.0.0

0092

5.6.0-5.6.4

Note: Upgrade from 5.6.5 and later to 6.0.0 is not supported. You must upgrade from 5.6.4 and earlier.

Supported models: FMG-200D, FMG-200F, FMG-300D, FMG-300E, FMG-400E, FMG-1000D, FMG-2000E, FMG-3000F, FMG-3900E, FMG-4000D, and FMG-4000E; FMG-VM64, FMG-VM64-AWS, FMG-VM64-Azure, FMG‑VM64‑HV (including Hyper-V 2016), FMG-VM64-KVM, and FMG-VM64-XEN (for both Citrix and Open Source Xen).

Note: FortiManager 6.0.0 does not support ADOM version 5.0. FortiManager 6.0.0 supports only ADOM versions 5.2, 5.4, 5.6, and 6.0.

5.6.8

1800

5.4.0–5.4.6

5.6.0-5.6.7

Supported models: FMG-200D, FMG-200F, FMG-300D, FMG-300E, FMG-300F, FMG-400E, FMG-1000D, FMG-2000E, FMG-3000F, FMG-3900E, FMG-4000D, and FMG-4000E; FMG-VM64, FMG-VM64-AWS, FMG-VM64-Azure, FMG-VM64-GCP, FMG-VM64-HV (including Hyper-V 2016), FMG-VM64-KVM, FMG-VM64-OPC, and FMGVM64-XEN (for both Citrix and Open Source Xen).

Note: FortiManager 5.6.8 does not support ADOM version 5.0. FortiManager 5.6.8 supports only ADOM versions 5.2, 5.4, or 5.6.

5.6.7

1782

5.4.0–5.4.6

5.6.0-5.6.6

Supported models: FMG-200D, FMG-200F, FMG-300D, FMG-300E, FMG-300F, FMG-400E, FMG-1000D, FMG-2000E, FMG-3000F, FMG-3900E, FMG-4000D, and FMG-4000E; FMG-VM64, FMG-VM64-AWS, FMG-VM64-Azure, FMG-VM64-GCP, FMG-VM64-HV (including Hyper-V 2016), FMG-VM64-KVM, FMG-VM64-OPC, and FMGVM64-XEN (for both Citrix and Open Source Xen).

Note: FortiManager 5.6.7 does not support ADOM version 5.0. FortiManager 5.6.7 supports only ADOM versions 5.2, 5.4, or 5.6.

5.6.6

1750

5.4.0–5.4.6

5.6.0-5.6.5

Supported models: FMG-200D, FMG-200F, FMG-300D, FMG-300E, FMG-400E, FMG-1000D, FMG-2000E, FMG-3000F, FMG-3900E, FMG-4000D, and FMG-4000E; FMG-VM64, FMG-VM64-AWS, FMG-VM64-Azure, FMG‑VM64‑HV (including Hyper-V 2016), FMG-VM64-KVM, FMG-VM64-OPC, and FMG-VM64-XEN (for both Citrix and Open Source Xen).

Note: FortiManager 5.6.6 does not support ADOM version 5.0. FortiManager 5.6.6 supports only ADOM versions 5.2, 5.4, or 5.6.

5.6.5

1707

5.4.0–5.4.5

5.6.0-5.6.4

Supported models: FMG-200D, FMG-200F, FMG-300D, FMG-300E, FMG-400E, FMG-1000D, FMG-2000E, FMG-3000F, FMG-3900E, FMG-4000D, and FMG-4000E; FMG-VM64, FMG-VM64-AWS, FMG-VM64-Azure, FMG‑VM64‑HV (including Hyper-V 2016), FMG-VM64-KVM, and FMG-VM64-XEN (for both Citrix and Open Source Xen).

Note: FortiManager 5.6.5 does not support ADOM version 5.0. FortiManager 5.6.5 supports only ADOM versions 5.2, 5.4, or 5.6.

5.6.4

1678

5.4.0–5.4.5

5.6.0-5.6.3

Supported models: FMG-200D, FMG-200F, FMG-300D, FMG-300E, FMG-400E, FMG-1000D, FMG-2000E, FMG-3000F, FMG-3900E, FMG-4000D, and FMG-4000E; FMG-VM64, FMG-VM64-AWS, FMG-VM64-Azure, FMG‑VM64‑HV (including Hyper-V 2016), FMG-VM64-KVM, and FMG-VM64-XEN (for both Citrix and Open Source Xen).

Note: FortiManager 5.6.4 does not support ADOM version 5.0. FortiManager 5.6.4 supports only ADOM versions 5.2, 5.4, or 5.6.

5.6.3

1662

5.4.0–5.4.5

5.6.0-5.6.2

Supported models: FMG-200D, FMG-200F, FMG-300D, FMG-300E, FMG-400E, FMG-1000D, FMG-2000E, FMG-3000F, FMG-3900E, FMG-4000D, and FMG-4000E; FMG-VM64, FMG-VM64-AWS, FMG-VM64-Azure, FMG‑VM64‑HV (including Hyper-V 2016), FMG-VM64-KVM, and FMG-VM64-XEN (for both Citrix and Open Source Xen).

Note: FortiManager 5.6.3 does not support ADOM version 5.0. FortiManager 5.6.3 supports only ADOM versions 5.2, 5.4, or 5.6.

5.6.2

1631

5.4.0–5.4.4

5.6.0-5.6.1

Supported models: FMG-200D, FMG-200F, FMG-300D, FMG-300E, FMG-400E, FMG-1000D, FMG-2000E, FMG-3000F, FMG-3900E, FMG-4000D, and FMG-4000E; FMG-VM64, FMG-VM64-AWS, FMG-VM64-Azure, FMG‑VM64‑HV (including Hyper-V 2016), FMG-VM64-KVM, and FMG-VM64-XEN (for both Citrix and Open Source Xen).

Note: FortiManager 5.6.2 does not support ADOM version 5.0. FortiManager 5.6.2 supports only ADOM versions 5.2, 5.4, or 5.6.

5.6.1

1619

5.4.0–5.4.4

5.6.0

Supported models: FMG-200D, FMG-200F, FMG-300D, FMG-300E, FMG-400E, FMG-1000D, FMG-2000E, FMG-3000F, FMG-3900E, FMG-4000D, and FMG-4000E; FMG-VM64, FMG-VM64-AWS, FMG-VM64-Azure, FMG‑VM64‑HV (including Hyper-V 2016), FMG-VM64-KVM, and FMG-VM64-XEN (for both Citrix and Open Source Xen).

Note: FortiManager 5.6.1 does not support ADOM version 5.0. FortiManager 5.6.1 supports only ADOM versions 5.2, 5.4, or 5.6.

5.6.0

1557

5.4.0–5.4.3

Supported models: FMG-200D, FMG-200F, FMG-300D, FMG-300E, FMG-400E, FMG-1000D, FMG-2000E, FMG-3000F, FMG-3900E, FMG-4000D, and FMG-4000E; FMG-VM64, FMG-VM64-AWS, FMG-VM64-Azure, FMG‑VM64‑HV, FMG-VM64-KVM, and FMG-VM64-XEN (for both Citrix and Open Source Xen).

Note: FortiManager 5.6.0 does not support ADOM version 5.0. FortiManager 5.6.0 supports only ADOM versions 5.2, 5.4, or 5.6.

In FortiManager 5.0 and later, FortiClient endpoint agent configuration and management are handled by FortiGate Endpoint Control. You can configure your FortiGate to discover new devices on your network, enforce FortiClient registration, and deploy a pre-configured endpoint profile to connected devices. This feature requires a FortiGate running FortiOS version 5.0 or later.

For more information, see the Device and Client Reputation for FortiOS 5.0 Handbook in the Fortinet Document Library.

FortiManager 5.0 and later uses a new hard disk drive partition layout. After upgrading from pre-version 5.0 to 5.0 or later, you must make a backup and then reformat the disk with this command:

execute format {disk | disk-ext4 | disk-ext3}

Formatting the disk erases all local logs and FortiGuard database information. Back up any local event logs you wish to keep. The device will have to re-download all the AV/IPS/AS/WF objects from the FortiGuard Distribution Servers (FDS). This download might take up to half a day. During that time, managed devices cannot obtain these services from FortiManager, so during this time, configure devices to point to a backup FortiManager or the FDS for these services.

FortiManager Firmware Upgrade Paths and Supported Models

For information about FortiManager support for FortiOS, see the FortiManager Compatibility chart in the Document Library at https://docs.fortinet.com/document/fortimanager/6.2.0/compatibility-with-fortios.

Before upgrading your device, see details in the applicable releases notes.

Firmware Version

Build Number

Upgrade From

6.0.5

0346

6.0.0-6.0.4

5.6.0-5.6.8

Supported models: FMG-200D, FMG-200F, FMG-300D, FMG-300E, FMG-300F, FMG-400E, FMG-1000D, FMG-1000F, FMG-2000E, FMG-3000F, FMG-3900E, FMG-4000D, FMG-4000E, FMG-VM64-MFGD; FMG-VM64, FMG-VM64-Ali, FMG-VM64-AWS, FMG-VM64-Azure, FMG-VM64-GCP, FMG‑VM64‑HV (including Hyper-V 2016), FMG-VM64-KVM, FMG-VM64-OPC and FMG-VM64-XEN (for both Citrix and Open Source Xen).

Note: FortiManager 6.0.5 does not support ADOM version 5.0. FortiManager 6.0.5 supports only ADOM versions 5.2, 5.4, 5.6, and 6.0.

6.0.4

0292

6.0.0-6.0.3

5.6.0-5.6.7

Supported models: FMG-200D, FMG-200F, FMG-300D, FMG-300E, FMG-300F, FMG-400E, FMG-1000D, FMG-2000E, FMG-3000F, FMG-3900E, FMG-4000D, FMG-4000E, FMG-VM64-MFGD; FMG-VM64, FMG-VM64-Ali, FMG-VM64-AWS, FMG-VM64-Azure, FMG‑VM64‑HV (including Hyper-V 2016), FMG-VM64-KVM, FMG-VM64-OPC and FMG-VM64-XEN (for both Citrix and Open Source Xen).

Note: FortiManager 6.0.4 does not support ADOM version 5.0. FortiManager 6.0.4 supports only ADOM versions 5.2, 5.4, 5.6, and 6.0.

6.0.3

0255

6.0.0-6.0.2

5.6.0-5.6.6

Supported models: FMG-200D, FMG-200F, FMG-300D, FMG-300E, FMG-300F, FMG-400E, FMG-1000D, FMG-2000E, FMG-3000F, FMG-3900E, FMG-4000D, FMG-4000E, FMG-VM64-MFGD; FMG-VM64, FMG-VM64-AWS, FMG-VM64-Azure, FMG‑VM64‑HV (including Hyper-V 2016), FMG-VM64-KVM, FMG-VM64-OPC and FMG-VM64-XEN (for both Citrix and Open Source Xen).

Note: FortiManager 6.0.3 does not support ADOM version 5.0. FortiManager 6.0.3 supports only ADOM versions 5.2, 5.4, 5.6, and 6.0.

6.0.2

0205

6.0.0-6.0.1

5.6.0-5.6.6

Supported models: FMG-200D, FMG-200F, FMG-300D, FMG-300E, FMG-300F, FMG-400E, FMG-1000D, FMG-2000E, FMG-3000F, FMG-3900E, FMG-4000D, FMG-4000E, FMG-MFGD; FMG-VM64, FMG-VM64-AWS, FMG-VM64-AWSOnDemand, FMG-VM64-Azure, FMG‑VM64‑HV (including Hyper-V 2016), FMG-VM64-KVM, and FMG-VM64-XEN (for both Citrix and Open Source Xen).

Note: FortiManager 6.0.2 does not support ADOM version 5.0. FortiManager 6.0.2 supports only ADOM versions 5.2, 5.4, 5.6, and 6.0.

6.0.1

0150

6.0.0

5.6.0-5.6.4

Note: Upgrade from 5.6.5 and later to 6.0.1 is not supported. You must upgrade from 5.6.4 and earlier.

Supported models: FMG-200D, FMG-200F, FMG-300D, FMG-300E, FMG-400E, FMG-1000D, FMG-2000E, FMG-3000F, FMG-3900E, FMG-4000D, and FMG-4000E; FMG-VM64, FMG-VM64-AWS, FMG-VM64-Azure, FMG‑VM64‑HV (including Hyper-V 2016), FMG-VM64-KVM, and FMG-VM64-XEN (for both Citrix and Open Source Xen).

Note: FortiManager 6.0.1 does not support ADOM version 5.0. FortiManager 6.0.1 supports only ADOM versions 5.2, 5.4, 5.6, and 6.0.

6.0.0

0092

5.6.0-5.6.4

Note: Upgrade from 5.6.5 and later to 6.0.0 is not supported. You must upgrade from 5.6.4 and earlier.

Supported models: FMG-200D, FMG-200F, FMG-300D, FMG-300E, FMG-400E, FMG-1000D, FMG-2000E, FMG-3000F, FMG-3900E, FMG-4000D, and FMG-4000E; FMG-VM64, FMG-VM64-AWS, FMG-VM64-Azure, FMG‑VM64‑HV (including Hyper-V 2016), FMG-VM64-KVM, and FMG-VM64-XEN (for both Citrix and Open Source Xen).

Note: FortiManager 6.0.0 does not support ADOM version 5.0. FortiManager 6.0.0 supports only ADOM versions 5.2, 5.4, 5.6, and 6.0.

5.6.8

1800

5.4.0–5.4.6

5.6.0-5.6.7

Supported models: FMG-200D, FMG-200F, FMG-300D, FMG-300E, FMG-300F, FMG-400E, FMG-1000D, FMG-2000E, FMG-3000F, FMG-3900E, FMG-4000D, and FMG-4000E; FMG-VM64, FMG-VM64-AWS, FMG-VM64-Azure, FMG-VM64-GCP, FMG-VM64-HV (including Hyper-V 2016), FMG-VM64-KVM, FMG-VM64-OPC, and FMGVM64-XEN (for both Citrix and Open Source Xen).

Note: FortiManager 5.6.8 does not support ADOM version 5.0. FortiManager 5.6.8 supports only ADOM versions 5.2, 5.4, or 5.6.

5.6.7

1782

5.4.0–5.4.6

5.6.0-5.6.6

Supported models: FMG-200D, FMG-200F, FMG-300D, FMG-300E, FMG-300F, FMG-400E, FMG-1000D, FMG-2000E, FMG-3000F, FMG-3900E, FMG-4000D, and FMG-4000E; FMG-VM64, FMG-VM64-AWS, FMG-VM64-Azure, FMG-VM64-GCP, FMG-VM64-HV (including Hyper-V 2016), FMG-VM64-KVM, FMG-VM64-OPC, and FMGVM64-XEN (for both Citrix and Open Source Xen).

Note: FortiManager 5.6.7 does not support ADOM version 5.0. FortiManager 5.6.7 supports only ADOM versions 5.2, 5.4, or 5.6.

5.6.6

1750

5.4.0–5.4.6

5.6.0-5.6.5

Supported models: FMG-200D, FMG-200F, FMG-300D, FMG-300E, FMG-400E, FMG-1000D, FMG-2000E, FMG-3000F, FMG-3900E, FMG-4000D, and FMG-4000E; FMG-VM64, FMG-VM64-AWS, FMG-VM64-Azure, FMG‑VM64‑HV (including Hyper-V 2016), FMG-VM64-KVM, FMG-VM64-OPC, and FMG-VM64-XEN (for both Citrix and Open Source Xen).

Note: FortiManager 5.6.6 does not support ADOM version 5.0. FortiManager 5.6.6 supports only ADOM versions 5.2, 5.4, or 5.6.

5.6.5

1707

5.4.0–5.4.5

5.6.0-5.6.4

Supported models: FMG-200D, FMG-200F, FMG-300D, FMG-300E, FMG-400E, FMG-1000D, FMG-2000E, FMG-3000F, FMG-3900E, FMG-4000D, and FMG-4000E; FMG-VM64, FMG-VM64-AWS, FMG-VM64-Azure, FMG‑VM64‑HV (including Hyper-V 2016), FMG-VM64-KVM, and FMG-VM64-XEN (for both Citrix and Open Source Xen).

Note: FortiManager 5.6.5 does not support ADOM version 5.0. FortiManager 5.6.5 supports only ADOM versions 5.2, 5.4, or 5.6.

5.6.4

1678

5.4.0–5.4.5

5.6.0-5.6.3

Supported models: FMG-200D, FMG-200F, FMG-300D, FMG-300E, FMG-400E, FMG-1000D, FMG-2000E, FMG-3000F, FMG-3900E, FMG-4000D, and FMG-4000E; FMG-VM64, FMG-VM64-AWS, FMG-VM64-Azure, FMG‑VM64‑HV (including Hyper-V 2016), FMG-VM64-KVM, and FMG-VM64-XEN (for both Citrix and Open Source Xen).

Note: FortiManager 5.6.4 does not support ADOM version 5.0. FortiManager 5.6.4 supports only ADOM versions 5.2, 5.4, or 5.6.

5.6.3

1662

5.4.0–5.4.5

5.6.0-5.6.2

Supported models: FMG-200D, FMG-200F, FMG-300D, FMG-300E, FMG-400E, FMG-1000D, FMG-2000E, FMG-3000F, FMG-3900E, FMG-4000D, and FMG-4000E; FMG-VM64, FMG-VM64-AWS, FMG-VM64-Azure, FMG‑VM64‑HV (including Hyper-V 2016), FMG-VM64-KVM, and FMG-VM64-XEN (for both Citrix and Open Source Xen).

Note: FortiManager 5.6.3 does not support ADOM version 5.0. FortiManager 5.6.3 supports only ADOM versions 5.2, 5.4, or 5.6.

5.6.2

1631

5.4.0–5.4.4

5.6.0-5.6.1

Supported models: FMG-200D, FMG-200F, FMG-300D, FMG-300E, FMG-400E, FMG-1000D, FMG-2000E, FMG-3000F, FMG-3900E, FMG-4000D, and FMG-4000E; FMG-VM64, FMG-VM64-AWS, FMG-VM64-Azure, FMG‑VM64‑HV (including Hyper-V 2016), FMG-VM64-KVM, and FMG-VM64-XEN (for both Citrix and Open Source Xen).

Note: FortiManager 5.6.2 does not support ADOM version 5.0. FortiManager 5.6.2 supports only ADOM versions 5.2, 5.4, or 5.6.

5.6.1

1619

5.4.0–5.4.4

5.6.0

Supported models: FMG-200D, FMG-200F, FMG-300D, FMG-300E, FMG-400E, FMG-1000D, FMG-2000E, FMG-3000F, FMG-3900E, FMG-4000D, and FMG-4000E; FMG-VM64, FMG-VM64-AWS, FMG-VM64-Azure, FMG‑VM64‑HV (including Hyper-V 2016), FMG-VM64-KVM, and FMG-VM64-XEN (for both Citrix and Open Source Xen).

Note: FortiManager 5.6.1 does not support ADOM version 5.0. FortiManager 5.6.1 supports only ADOM versions 5.2, 5.4, or 5.6.

5.6.0

1557

5.4.0–5.4.3

Supported models: FMG-200D, FMG-200F, FMG-300D, FMG-300E, FMG-400E, FMG-1000D, FMG-2000E, FMG-3000F, FMG-3900E, FMG-4000D, and FMG-4000E; FMG-VM64, FMG-VM64-AWS, FMG-VM64-Azure, FMG‑VM64‑HV, FMG-VM64-KVM, and FMG-VM64-XEN (for both Citrix and Open Source Xen).

Note: FortiManager 5.6.0 does not support ADOM version 5.0. FortiManager 5.6.0 supports only ADOM versions 5.2, 5.4, or 5.6.

In FortiManager 5.0 and later, FortiClient endpoint agent configuration and management are handled by FortiGate Endpoint Control. You can configure your FortiGate to discover new devices on your network, enforce FortiClient registration, and deploy a pre-configured endpoint profile to connected devices. This feature requires a FortiGate running FortiOS version 5.0 or later.

For more information, see the Device and Client Reputation for FortiOS 5.0 Handbook in the Fortinet Document Library.

FortiManager 5.0 and later uses a new hard disk drive partition layout. After upgrading from pre-version 5.0 to 5.0 or later, you must make a backup and then reformat the disk with this command:

execute format {disk | disk-ext4 | disk-ext3}

Formatting the disk erases all local logs and FortiGuard database information. Back up any local event logs you wish to keep. The device will have to re-download all the AV/IPS/AS/WF objects from the FortiGuard Distribution Servers (FDS). This download might take up to half a day. During that time, managed devices cannot obtain these services from FortiManager, so during this time, configure devices to point to a backup FortiManager or the FDS for these services.