This error indicates that a file upload operation failed. Error code 3800 is a general failure code and typically indicates that the transfer was interrupted by a condition outside of MOVEit Automation.

When this error occurs, the task log often contains additional information that can help identify the root cause. For example: 
$ Logging /users/miadmin/example.txt to Destination/Filepath size 0 err 3800
Interrupted. Did NOT complete task against '/users/miadmin/example.txt'
on 'SSH Host Example'

Common causes

Common causes of Error 3800 include:
  1. Network connectivity interruptions.
  2. Firewalls or security devices terminating the connection.
  3. Destination system availability issues.
  4. Problems with the target server or storage platform.
  5. Other communication failures that occur during file transfer.

Network-related failures

In many cases, Error 3800 is caused by a network device or security appliance interrupting the transfer. Because the error is generated when the transfer unexpectedly terminates, the task log may not identify the specific device responsible. Reviewing network traces, firewall logs, and proxy logs can help determine where the connection is being interrupted

Rare cases

In rare situations, 3800 errors can occur when transferring large files to older SFTP servers that do not fully support modern protocol implementations. If network analysis does not identify a failure and the issue can be consistently reproduced, contact Progress Technical Support for further investigation.