Created on
11-06-2022
04:50 AM
Edited on
02-24-2025
10:06 PM
By
Anthony_E
Description | This article describes why, in some cases, an automatic upgrade (via the GUI) fails because of too many factors like FortiGate being unable to connect to the FortiGuard server, or a delay in connecting to the server to complete the firmware download and upgrade. |
Scope | FortiGate. |
Solution |
In the event that the message 'Image upgrade failed' appears, attempt the following workarounds to avoid this error on the next upgrade.
The problem could be encountered on the FortiGate model 90G/91G/120G/121G in HA cluster mode. This is an isolated case and related to a known issue. Firmware upgrade from v7.0.16 to higher firmware version (v7.0.17, v7.2.x, v7.4.x, or v7.6.x).
Another workaround for the 90G/91G/120G/121G is to lower the security level via Console. For more information: Technical Tip: FortiGate 90G/91G/120G/121G HA cluster unable to upgrade due to error (Firmware image...
Also, provide the output of the below debug from both units if the device is in the HA cluster while reproducing the issue:
diagnose debug enable
Related documents: Upgrading FortiGates in an HA cluster - FortiGate administration guide Technical Tip: FortiGate HA upgrade procedure and the status during the upgrade |
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