FAQ

Why can't EPM print via IBM TCP/IP after OS/390 upgrade?

Consider the following points:

• After upgrading OS/390 from 2.4 or previous versions to 2.5 or higher, the EPM and EPMSUB tasks must be RACF authorized for OMVS. This is required in order to be allowed to use the TCP/IP stack.
• After upgrading the TCP/IP version 3.1 or 3.2 to a higher level, the EPM keyword "TCP" must be set to "TCP=IBMAPI". The reason for this is that the IUCV interface is no longer available on later versions of TCP/IP.