27001 error

Hello, I'm re-sending this to see if anyone has any idea cos right now we cannot connect more than 40 sessions to our on-line server which seems to me like a pile of mince! :) Any help greatly appreciated; actually this is the first cry for help from me in more than a year of using the product so either I'm brilliant or Informix is! (maybe both as well :)) Hi, This problem concerns the following setup. Two Sun E450 enterprise servers (one app server, one db server) both running two CPUS and Solaris 2.7 I'm using Informix7.31 Dynamic On-Line server. I also use the Client SDK kit on the application server. Anyway I'm running a number of software instances which connect to the database server over the ontlitcp connection. This all works fine until say about 30 + sessions and then I get the 27001 error on the client side only. The server is still on-line and can be connected to on the database server side no problem. What's more killing off app server sessions does not resolve the problem. I literally have to bring the Informix server off line and then back to on-line before I can get new connections. I have read all the docs about poll threads and so on and have set up the following in the onconfig file :- NETTYPE ipcshm,1,100,CPU NETTYPE tlitcp,1,100,NET But to no avail. Anyone got any ideas? The online.log basically tells me that the listener thread throws up the 27001 error due to a read error during a connection attempt. Also, the Unix boxes are not under heavy load/busy network for this to happen! Regards, Willie William.Fisher@braidgrove.co.uk ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Willie Fisher ~ Software Engineer Braidgrove.com Ltd ~ Alness 01349 892005 ~ 07979237969