Created on 11-06-2022 04:50 AM Edited on 11-19-2023 02:53 PM By Stephen_G
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.
If these steps do not work, open a TAC case for further troubleshooting, analysis, and resolution.
Related documentation: Upgrading FortiGates in an HA cluster - FortiGate administration guide. |
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