--- title: "com.vmware.vc.vsan.HostVendorProviderDeregistrationFailedEvent" description: "Vendor provider deregistration failed. The administrator has attempted to unregister a storage provider used by the vSAN and the operation has failed." canonical: "https://helpcenter.veeam.com/docs/mp/kb/com.vmware.vc.vsan.hostvendorproviderderegistrationfailedevent.html" breadcrumb: "Veeam MP for VMware Online Knowledge Base > vCenter Server Alarms > Veeam VMware: Host vendor provider registration Alarm > com.vmware.vc.vsan.HostVendorProviderDeregistrationFailedEvent" dateModified: "2026-09-10" --- # com.vmware.vc.vsan.HostVendorProviderDeregistrationFailedEvent ## Summary Vendor provider deregistration failed. ## Causes The administrator has attempted to unregister a storage provider used by the vSAN and the operation has failed. ## Resolution According to VMware limitations, you cannot unregister a storage provider used by the vSAN manually. To overcome this limitation, you may remove the necessary hosts from the vSAN cluster and then add them to the cluster again. ## External Refer to [VMware Online Documentation](https://docs.vmware.com/en/VMware-vSphere/index.html#com.vmware.vsphere.storage.doc/GUID-52E19C11-32DD-4145-A952-24A4783DBD14.html) for more information on storage providers used by the vSAN.