--- title: "com.vmware.vc.guestOperations.GuestOperationAuthFailure" description: "Authentication failed for guest operation. Guest operation authentication failed for an operation on the VM. Review VMware online documents such as vSphere Troubleshooting Guide to resolve virtual machine issues." canonical: "https://helpcenter.veeam.com/docs/mp/kb/com.vmware.vc.guestoperations.guestoperationauthfailure.html" breadcrumb: "Veeam MP for VMware Online Knowledge Base > Event-Based Rules > Virtual Machine Warning > com.vmware.vc.guestOperations.GuestOperationAuthFailure" dateModified: "2026-09-10" --- # com.vmware.vc.guestOperations.GuestOperationAuthFailure ## Summary Authentication failed for guest operation. ## Causes Guest operation authentication failed for an operation on the VM. ## Resolutions Review VMware online documents such as [vSphere Troubleshooting Guide](https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.networking.doc/GUID-DE119813-63A7-4B68-924D-1ED95F6EFFD7.html) to resolve virtual machine issues. ## External Refer to the [VMware Online Documentation](https://techdocs.broadcom.com/) for more information.