Jobs fail with "The host is not licensed for this feature" error message after upgrade to Veeam Backup & Replication 9.5 Update 4

Challenge

After upgrading Veeam Backup & Replication to version 9.5 Update 4, backups of VMs from ESXi 5.0 and 5.1 licensed with VMware Essentials licensing start to fail with the following error: "VDDK error: 16064 (The host is not licensed for this feature)".

Cause

Regression in the VMware VDDK 5.5.5 specific to vSphere ESXi 5.0 or 5.1 hosts which are licensed with the VMware Essentials license.

Solution

Veeam is currently in the process of developing a hotfix for this issue. As a workaround, applying an Evaluation License on the hosts will allow backups to resume normally until a hotfix that brings back an earlier VDDK version is created.

Please install a private fix to address this issue:

1. Download private fix for Veeam Backup & Replication 9.5 U4 and extract on the Veeam Backup Server. 
2. Right-click on the installation file and click "Run as administrator"
3. Go through the wizard to install private fix.
4. Relaunch Veeam Backup Console and let Veeam automatically update hosts added to the Veeam server.

NOTE: There is no need to stop Veeam services.
 

More Information

[[DOWNLOAD|DOWNLOAD PRIVATE FIX|https://storage.veeam.com/Fix_158670_70bd7495f2.zip]]
MD5 for veeam_backup_9.5.4.2615.update4_kb2875.exe: b02cd8c24b68a750eff9bc9e734dcec8
SHA-1 veeam_backup_9.5.4.2615.update4_kb2875.exe for b38b3e4e985239e6369356de4273f0001c00e607