After installing Enterprise Extender, when establishing a LU 6.2 connection, you are receiving the following error message:
DFHZC2411 E SNASVCMG attempted invalid logon. SENSE CODE 0835 003B ((29) Module name: DFHZBLX)
DFHZC2411 with sense code 0835 003B
An incoming BIND request for SNASVCMG session is rejected by CICS with sense code 0835003B because single session is defined in Connection definition.
Diagnosing the problem
The bind image coming into CICS is:
001307B0 B0503100 8A86868A 00060200 00000000 00401623 000008D5 D9C9C5C2 F7F0F033 000902E2 D5C1E2E5 C3D4C709 030177A8 ABBD3A0E CB1204E4 E2C9D4C1 C7F0F14B D5D9C9C5 C2F7F0F0 0A130005 BC6CE440 2C13F3
Bind byte 24 has '23', the '02' is for parallel sessions, the '01' is for change number of sessions (CNOS) support, so this bind is for a parallel session. CICS does not have an installed connection definition with parallel sessions that matches this incoming bind. When DFHZBLX tries to match the netname, no appropriate connection definition was found (the one with the matching name is for a single session, not parallel session), and you receive message DFHZC2411.
Resolving the problem
Change SINGLESESS from YES to NO in Connection definition.
CICS/TS CICS TS CICS Transaction Server CICS/VSE VSE z/VSE