Encountering a backup failure is a system administrator’s worst nightmare. When you check the job log in Veritas Backup Exec and see the cryptic error code , accompanied by the message "Access is denied," it can bring your data protection strategy to a screeching halt.
Veritas Backup Exec error 0xe00086cc is a signal that your backup software lost its grip on your storage media. By systematically checking your physical connections, updating drivers, and disabling aggressive network power-saving features, you can restore stability to your backup environment and ensure your data remains safely protected. If you(NAS, SAN, Tape, local disk, or cloud?) What is hosting your Backup Exec server?
A full or corrupted shadow storage area can cause I/O write failures.
Mismatched or outdated drivers for Host Bus Adapters (HBAs), Network Interface Cards (NICs), or tape drives.
: Firewall rules or disabled services (like WMI) are preventing the initial handshake. Step-by-Step Troubleshooting Guide 1. Establish a Manual Trust Relationship 0xe00086cc backup exec
Locate the specific service account assigned to Backup Exec.
: The Backup Exec Service Account (BESA) or the System Logon Account has a password that has expired or does not match the credentials on the target server.
Are the media server and target server on the , or across a VPN/WAN ? Share public link
Does this error happen during a backup, or a standard file system backup? Encountering a backup failure is a system administrator’s
Ensure TCP Port 10000 is completely open bi-directionally between the media server and remote agents for NDMP communication.
Heavy network traffic or poor bandwidth can drop the connection between the media server and the remote agent.
or the specific credentials used to access a resource (like a SQL instance or an Exchange mailbox) can lead to this error. If the account lacks the "Log on as a service" right or has had its password changed without being updated in the Backup Exec console, the handshake will fail. Strategic Troubleshooting
Your primary step is ensuring that the global account executing the network commands holds consistent credentials across the infrastructure. Backup Exec Remote Agent Install Fail - Access Denied Mismatched or outdated drivers for Host Bus Adapters
In technical terms, the error translates to (0x8004230C). This indicates that Backup Exec’s AOFO (Advanced Open File Option) or the VSS infrastructure was unable to read one or more volumes on the target machine because the process lacked the necessary permissions.
You can configure Backup Exec to be more resilient against minor, temporary connectivity drops. Open the Backup Exec console and navigate to .
Maintenance Releases (also known as Patch Updates) are roll‑ups of all prior updates, patches, and hotfixes. After an update is applied to the Backup Exec server, remote agents must be redeployed to receive the same updates.