Exclude the BackupExec.exe and Beremote.exe processes from real-time scanning. Real-time scanning can lock backup files or interrupt the data stream, triggering a network failure code. 5. Modify Backup Job Block and Buffer Sizes
Backup Exec uses specific ports for communication between the media server and remote agents, primarily TCP port 10000 for the Remote Agent service. Firewalls, both Windows built‑in and third‑party, may block this port or the associated executable ( beremote.exe ). Additionally, issues such as DNS resolution failures, incorrect hostname entries, or VPN connectivity problems can all manifest as error 0xe00086cc.
: Attempting to back up resources using a modern engine while running an archaic or unpatched target agent will trigger a security rejection. Step-by-Step Resolution Strategies 0xe00086cc backup exec
: The resource (server, database, etc.) being backed up might be offline, or there could be a resource contention issue.
According to Veritas Support , the 0xe00086cc error is primarily caused by specified for the System Logon Account, preventing the Remote Agent from properly communicating with the resource, or by an issue where the resource itself has been removed or renamed. Exclude the BackupExec
Locate the specific service account assigned to Backup Exec.
This is the most frequently reported cause. The bedssql2.dll file can become corrupted or incompatible due to: Modify Backup Job Block and Buffer Sizes Backup
Enter the updated user credentials and domain name, then apply the changes.
Backup Exec 2012 introduced significant architectural changes, including a redesigned console and updated agent communication methods. Users upgrading from older versions frequently encountered error 0xe00086cc due to agent version mismatches. The application of Service Pack 2, Service Pack 3, and Service Pack 4 resolved many of these connection issues, with later service packs (SP4) reportedly fixing errors that earlier updates left unresolved.
: Ensure the System Logon Account in Backup Exec matches the permissions on the remote server.
Although error 0xe00086cc is predominantly a connectivity error, hardware problems can sometimes trigger the same error code. The following hardware‑related checks are worth performing when software troubleshooting fails to resolve the issue: