Problem:

Unable to Log on to FTP Server: 530 Log on attempt by user rejected
 

Solution:

This error can occur if the AS/400 user ID is incorrect or the AS/400 password has expired and the user profile has been disabled. 
 
Check the AS/400 to make sure the AS/400 user ID and password are correct and the user profile has not been disabled. The WRKUSRPRF command can be used on the AS/400 to verify this information.
 
Note: Sometimes companies change their passwords every 30 days, so ask them if they can create a user where the password never changes or expires.
 
Also: On V5R2 of OS/400 the password is case sensitive.
 

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Last Modified On: December 10, 2016