ANR0421W
Session session number for node node name (client platform) refused - sign-on protocol violation.

Explanation

The server refuses a request for a client session because sign-on protocol has been violated.

System action

Server operation continues.

User response

This error is usually the result of a client programming error in which the sign-on verb has been incorrectly formatted and delivered to the server. This error can also result when the server is contacted by an application that is not a part of this product.