Symptoms
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),
Impact / Risks
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.
Resolution
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.
Related Information
This is a child article of Horizon View Best Practices: Instant Clone Provisioning and Troubleshooting (91265)
