IAZ0524I server_name TCP/IP Signon record not valid: ACK or NAK expected
Explanation
During signon of a node using TCP/IP
protocol, a signon record was detected that contained neither ACK
nor NAK. Possible causes of this condition are:
- Corruption of the signon record.
- The remote node IP address and port values are not valid on the socket statement.
In the message text:
- server_name
- The NJETCP server name.
System action
NETSERV socket connection is terminated. If it is an outbound connection, an OPEN or OPEN SSL is sent to the remote node. An ACK or NAK is expected from the remote node as a reply.
Operator response
Notify the system programmer.
System programmer response
If the problem persists, activate internal and JES tracing on the socket. Use information from the trace and search problem reporting databases for a fix to the problem. If no fix exists, contact the IBM® Support Center.
Source
NETSERV socket initialization
Module
IAZNJSTK
Routing code
8, 43
Descriptor code
4