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When running backup or replication jobs for Windows virtual machines hosted on Nutanix AHV, Proxmox VE, or Scale Computing HyperCore with Veeam Backup & Replication 13.0.1 Patch 2, guest processing fails with one of the following errors: Failed to install guest processing components for [VM name]. Error: Failed to connect to the guest OS. or Failed to prepare guest for hot backup. Error: Cannot start service. Machine: [IP address]. Service: [VeeamGuestHelper]. Cannot start service. Win32 error: The service did not respond to the start or control request in a timely fashion. Code: 1053
This issue occurs due to an in-guest processing component that may be assigned an invalid port value, preventing it from initializing.
Potential Conflict with Existing Private Hotfixes If you have already installed another private hotfix, contact Veeam Support before installing this hotfix to confirm there are no conflicts. Private hotfixes replace core product files (e.g., .dll and .exe). If multiple private hotfixes modify the same file, installing one can overwrite changes from another and cause unexpected behavior.
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