Help for DSU0155

There is no communication with an OS/400 server. Required information cannot be retrieved from the OS/400 system until a communication session is started.

Response: Use the OS/400 STRCODE (Start Code) command to begin a communication session. If there is already a communication session started, make sure its 5250 emulation session has not been suspended by the System-Request key.

For more information on starting an CODE communication session, see the Getting Started help.