Monitoring and Controlling CICS Resources › Establish a Session with a Region › Session Cannot Be Established

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Session Cannot Be Established

Symptom:

I cannot establish a session because the LU 1 APPL definitions are not available or because the logon modes are not compatible.

Solution:

  1. Ensure that the region to which you are trying to connect is set up for LU 1 sessions.
  2. Enter /PARMS from any panel to access the list of parameter groups.
  3. Review the LU1 Terminal Prefix or the LU1 Logmode field for the EXTAPPLS parameter group to ensure that the correct prefix or logon mode is specified.

    The specified prefix applies to all LU 1 sessions. The specified mode applies to MTO LU 1 sessions only.