Error Message

Typically errors during the offsite copy phase of a backup are network related. The most common issue is low bandwidth conditions when the offsite destination is across a Wide Area Network or to an Internet Provider. In the event of a lost connection, dropped packets, or a timeout condition the job will fail with an unspecified error.

To troubleshoot the error, perform the following steps:

1.  Verify basic network connectivity by running PING to the FTP server

2.  Run offsite copy to a locally attached device to rule out the computer being backed up as the source of the problem.

3.  Create a new folder on the FTP server and run the offsite copy to the new location using IP address

4.  Ensure antivirus software or firewall software is not blocking traffic.
See related document:
https://www.veritas.com/support/en_US/article.000037314

5.  If offsite copies are still failing, then the network is the most likely cause

Network Considerations:

The backup speed is limited by the speed of the physical connection. The rate at which the backup runs depends on the make/model of network cards, the mode/frame type configuration for the adapter, the connectivity equipment (hubs, switches, routers, and so on), and operating system settings. Backups to a local disk can usually backup at a higher rate of speed than backing up across a network.

A common reason for slow network backups can be networking configuration. Features such as "full-duplex" and "auto-detect" may not be fully supported in every environment. Manually set the speed to 100 Mb and the duplex to half/full for the server side. Find out which Ethernet port the server is connected to on the switch, and set the SWITCH PORT setting to 100 MB and half/full duplex. Do this for the backup server switch port, and any switch ports for machines being backed up.

When a hub is in place instead of a switch, full duplex may not be supported, see the Original Equipment Manufacturer for details on device features. Also, both the switch and the network card must have matching settings, for instance, if the switch port is set to 100 half, the NIC for the server should also be set to 100 half.

Another common cause could be the NIC driver. Update the network card drivers on the server and remote machine. Also make sure that the link speed/duplex values are set properly on all machines and that networking errors are not occurring in the Windows Event Viewer logs. Check the event logs for any other warnings, errors, or normal events that may take place when the backups run.

6. As an additional troubleshooting step, Veritas has an agreement with AppNeta to provide a network utility called AppCritical. This utility will provide Veritas Technical Support additional information and possibly identify bottlenecks or other underlying issues in the network infrastructure.
Please refer to the following technote about how to use this utility:

https://www.veritas.com/support/en_US/article.100023042.html

7.   Go to the Tasks drop-down menu in VSR and then select Options.  On the "Configure FTP" window under the Destinations heading, change "Connection Mode" from default Passive (recommended) to Active and run another offsite copy to FTP.