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An index of known customization errors when provisioning instant clones and steps to resolve.General Troubleshooting Steps are outlined here: Troubleshooting Vmware Horizon Machines that do not complete Customization (83985),
The Internal Template is a clone of your parent image where a domain join is performed.Logs state that customization failed with an error message, this results in an incomplete horizon agent setup.
Operating System Level Issues : AGENT_CUSTOMIZATION_FAULT - Internal template vm-XXXX customization failed Error Rename Failed In NGA Instant Clone Creation Error(90782) - This article outlines a scenario where the rename of the Internal Template does not occur and steps to verify.AGENT_CUSTOMIZATION_FAULT - Internal template vm-XXXX customization failed Error description not set by agent Instant Clone Creation Error (90781) - This article outlines a scenario where the domain join is successful, the machine restarts however a generic error is hit and steps to verify. Network Infrastructure Level Issues : AGENT_CUSTOMIZATION_FAULT - Internal template vm-XXXX customization failed Error Domain Join Failed. Verify DNS Failed In NGA Instant Clone Creation Error(90783) This article outlines a scenario when DNS issues interfere with the process and customization fail and provides guidance on a troubleshooting approach.AGENT_CUSTOMIZATION_FAULT - Internal template vm-XXXX customization failed. Failed To Obtain Valid IP Address Instant Clone Creation Error (90784) This article outlines a scenario when NIC configuration concerns can interfere with customization and steps to address these concerns. Active Directory Permissions and increased Hardening: Be aware of the following updates that may have an impact on the customization process: Impact of Microsoft security update (KB5020276) on Instant clones (92214) - This article outlines the impact of an update that addresses a security bypass vulnerability CVE-2021-42291 and steps to take to remediateImpact of Microsoft security update (KB5008383) on Instant clones (92215) This article outlines the impact of additional protections introduced by CVE-2022-38042 and steps to take to remediate.
This is a child article of Horizon View Best Practices: Instant Clone Provisioning and Troubleshooting (91265)
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