Check both the source server and the target server for any additional messages that might further describe the reason the session was rejected. For a reason of AUTHENTICATION FAILURE, ensure that both the source and target servers are using the same password. For a reason of NO RESOURCE, ensure that the target server is enabled, has sufficient DB, LOG, and memory resource to support the source server session, and that the node name of the source server is not locked or in use. If this is a routed command, check to make sure that the administator id being used to route the command is not locked or in use. For a reason of LICENSE FAILURE, ensure that the target server is properly licensed to support the source server session. For a reason of DOWN LEVEL, ensure that the target server program is a level new enough to support the source server session. For a reason of NODE TYPE, the source server is not allowed to establish a session with the given target server. The NODETYPE on the target server is CLIENT. The NODENAME parameter of the server definition on the source server is incorrect. The NODETYPE parameter of the registered node on the target server is incorrect and should be NODETYPE=SERVER. For a reason of INTERNAL ERROR, use the messages on the target server to determine the problem. For all reasons, if none of the above are applicable, ensure that that the target server has not disabled this server with the DISABLE SESSIONS SERVER command. Retry the failing operation.