Qlik Talend Cloud: Too many bad authentication attempts! Too many bad authentication attempts!

[Chethankumar_JS]

Connecting to an SFTP server using username and password authentication fails with the error:

Too many bad authentication attempts! 
com.jcraft.jsch.JSchException: 11 Too many bad authentication attempts!

Resolution

The issue is caused by the password containing a backslash (\). A backslash is treated as a control or escape character and must be escaped accordingly. If not handled correctly, a control or escape character in a password can cause connection or authentication errors.

Either remove the backslash (\) or replace it with a double backslash (\\) to escape it properly.

Example:

Previous, failing password: Test\123
Updated password: Test\\123

Environment

• Qlik Talend Cloud
• Qlik Talend Data Integration