When backing a server with the ISA 2004 Firewall running in the environment, the backup fails with "A communications failure has occurred" and "The connection to target system has been lost"
0xe000fe30 - A communications failure has occurred. - The connection to target system has been lost. Backup set canceled.
If bi-directional rules not set on the ISA server for connections to be made from both the Media Server as well as the remote server.
- Microsoft Internet Security and Acceleration (ISA) Server is an integrated network edge security gateway that helps protect IT environments from Internet-based threats while providing users fast and secure remote access to applications and data.
- The outbound rule in ISA will need to be configured to allow traffic outbound. The outbound rule will allow "bi-directional" communication. Backup Exec requires connections to be made from both the Media Server as well as the remote server. Without the bi-directional rules, the servers will not be able to communicate with each other.
- The outbound configuration on the ISA should be configured similarly to the picture shown below:
If assistance to configure the rule is needed on ISA Server, please contact Microsoft support for further assistance.
If successfully connected, the following should be returned:
If the firewall is not allowing connections to be made, the following may show:
Note: For more information about configuring Backup Exec to protect (backup or restore) machines behind a firewall, please see the Backup Exec Administrator's Guide as well the Related Documents listed below.