Strange error during concurrence of users

Hi to all I have the next error in 4gl app: Error number -25588 The appl process cannot connect to database server server-name. $ finderr -25588-25588 The appl process cannot connect to the database server server-name. An error in the application can produce this message. Check your CONNECT statement and the sqlhosts file. A system failure can also produce this message. If you can find no immediate cause for the failure, note the circumstances and contact your database server administrator for assistance. The shared memory communication subsystem is down or not functioning. Contact the database server administrator to report the problem. This occurs at the 5th and next runs of the app... this app was running ok at the old server since last saturday but it's not running ok at the new server (10 or 15 times powerful!!!!) Here I post some onconfig parameters that help us to help me. # Shared Memory Parameters LOCKS 100000 # Maximum number of locks BUFFERS 192000 # Maximum number of shared buffers NUMAIOVPS 2 # Number of IO vps PHYSBUFF 96 # Physical log buffer size (Kbytes) LOGBUFF 32 # Logical log buffer size (Kbytes)LOGSMAX 100 # Maximum number of logical log files CLEANERS 4 # Number of buffer cleaner processes SHMBASE 0x0 # Shared memory base address SHMVIRTSIZE 196608 # initial virtual shared memory segment size SHMADD 65536 # Size of new shared memory segments (Kbytes) SHMTOTAL 0 # Total shared memory (Kbytes). 0=>unlimited CKPTINTVL 300 # Check point interval (in sec) LRUS 48 # Number of LRU queues LRU_MAX_DIRTY 2 # LRU percent dirty begin cleaning limit LRU_MIN_DIRTY 1 # LRU percent dirty end cleaning limit LTXHWM 45 # Long transaction high water markpercentage LTXEHWM 50 # Long transaction high water mark (exclusive) TXTIMEOUT 0x12c # Transaction timeout (in sec) STACKSIZE 32 # Stack size (Kbytes) NEW SERVER: SQLHOSTS ids_dc onipcshm districn ids_dc_shm ids_dc_net onsoctcp districn s_ids_dc OLD SERVER: SQLHOSTS workgroup onsoctcp distri sqlturbo workgroup_shm onipcshm distri workgroup_shm NEW SERVER: ANOTHER PIECE OF ONCONFIG FILE DBSERVERNAME ids_dc # Name of default database server DBSERVERALIASES ids_dc_net # List of alternate dbservernames NETTYPE ipcshm,1,50,NET # Configure poll thread(s) for nettype NETTYPE soctcp,1,60,CPU # Configure poll thread(s) for nettype OLD SERVER: ANOTHER PIECE OF ONCONFIG FILE DBSERVERNAME workgroup # Name of default database server DBSERVERALIASES workgroup_shm # List of alternate dbservernames NETTYPE soctcp,1,50,NET # Configure poll thread(s) for nettype NETTYPE ipcshm,1,50,CPU # Configure poll thread(s) for netty What's the difference between NET and CPU at NETTYPE configuration??? TIA. DJMoralesM dmorales@districenter.es dmorales@condeminas.com Telf. 93 264 3940 sending to informix-list