Before diving into the error, let's briefly discuss what Backup Exec is. Backup Exec is a popular data protection and backup software developed by Veritas Technologies. It's designed to help organizations and individuals backup and recover their data from various sources, including servers, virtual machines, and cloud environments. Backup Exec provides a comprehensive data protection solution, supporting a wide range of backup targets, including tape, disk, and cloud storage.
: Be aware that Backup Exec has reached its end of sale as of March 31, 2026 , with end-of-life support scheduled for April 30, 2029 .
This is the most frequent culprit. If DNS resolution fails, the media server may attempt to contact the remote host using an outdated IP address. Similarly, hardware firewalls or Windows Firewall may block the default port (10000) used by the Backup Exec Agent. Service Failures: For a backup to succeed, the Remote Agent service
is vital; if a folder was deleted or a drive letter changed on the target server since the job was originally created, the software will fail to find the "resource," triggering the error. Re-selecting the backup sources often refreshes the pointer and resolves the conflict. Conclusion
On your main server, run to get the newest patches. 0xe00086cc backup exec
Periodically review backup selections for dead links, especially after decommissioning or re-architecting systems.
Backup Exec 2014 and subsequent versions improved error handling and diagnostic capabilities. The error continues to appear in these newer versions, but the troubleshooting process has become more streamlined with enhanced logging and credential testing tools. In Backup Exec 2014, the error is primarily associated with the System Logon Account, reinforcing the importance of proper credential management.
If the trust was not established during the initial "push" install, you must do it manually:
The Backup Exec Service Account (BESA) or the System Logon Account has an outdated, expired, or modified password in Active Directory that has not synced with the local console. Before diving into the error, let's briefly discuss
: In some cases, environmental blockers like a firewall, disabled Windows Management Instrumentation (WMI), or the Remote Registry service being stopped can prevent the installer from correctly identifying the remote agent's state. Recommended Solutions Manual Uninstall and Reinstall (Most Reliable) Log on to the target remote computer.
The courier can’t even get to the gate because it's locked. Firewalls often block the communication ports (like NDMP port 10000 ) or WMI (Windows Management Instrumentation) services needed for the "push" installation or initial connection. How to Fix the "Access Denied" Plot Twist Solved: Backup exec access is denied - Experts Exchange
The underlying issue is almost always a failure in the authentication handshake between the Backup Exec Media Server and the target Remote Agent. Specific triggers include:
If the error occurs mid-backup (partial success), it’s likely a timeout. If DNS resolution fails, the media server may
Heavy network traffic or poor bandwidth can drop the connection between the media server and the remote agent.
Ensure a exists. If it does not, create one. Select the account and click Edit .
Follow these sequential troubleshooting strategies to isolate and correct the issue on your system.
Test the backup job again to see if the connection stabilizes. 4. Configure Firewall and Antivirus Exclusions