Can't login in to Aria Products on SSO authentication windows/kerberos is not working

Products

• VCF Operations/Automation (formerly VMware Aria Suite)

Issue/Introduction

• SSO authentication for Windows/Kerberos stopped working in VMware Identity Manager 3.3.7 after applying VMware Identity Manager 3.3.7 patch CSP-97577 and also VMware Aria Suite Lifecycle 8.18 Patch 3 using the steps in the following kb CSP-97577: Patch instructions to upgrade platform components in VMware Identity Manager 3.3.7 and also kb VMware Aria Suite Lifecycle 8.18 Patch 3 Installation Runbook . 
  
  
• VMware Identity Manager  /opt/vmware/workspace/horizon/connector.log  shows the exception below: 
  2025-09-15T13:37:55,076 INFO : com.vmware.horizon.adapters.kerberosAdapter.KerberosIdpAdapter - Kerberos authentication failure: null
2025-09-15T13:37:55,076 INFO : com.vmware.horizon.adapters.kerberosAdapter.KerberosIdpAdapter - Cause: Failure unspecified at GSS-API level (Mechanism level: Checksum failed)

Environment

 VMware Identity Manager 3.3.7

Resolution

In the Active Directory,  perform the steps below:

NOTE: 
Update the commands from the PowerShell window.

Backups/snapshots on Windows are required before trying the steps below: 

1. The Encryption was not set properly (get the current state)
   Get-ADComputer "<Computer-object>" -Properties msDS-SupportedEncryptionTypes
   
   
2. Update correctly with the below command 
   Set-ADComputer "<Computer-object>" -Replace @{'msDS-SupportedEncryptionTypes'=24}