User authentication /Windows

We are running Informix 11.70 on a Windows Server 2008. Connecting to the server is working from the command line interface (DBACCESS -e dbname), but when trying to connect (for example) from Server Studio (on the same Windows server) using a userid and password we get -951 : incorrect password or user xxx@computer.xx.yy.zz is not known on the database server The userid is the same that was used when logging on to the Windows system and with which the server was successfully accessed via command line. The user is a local Windows user. The same goes for connections from other computers (in our case, a Cognos server) This is something that has worked previously on this same machine, so it seems that suddenly the informix server has lost contact with the Windows authentication information. We have not changed anything on Informix. It is possible that some Windows configurations have been changed (without our knowledge) could have this effect? Could this be some firewall issue? All suggestions are much appreciated - this is a urgent problem for us! Thanks, Lauri Pietarinen

Hi Lauri. Could this be relevant? APAR 512889 INCREASE PASSWORD LENGTH LIMIT ON WINDOWS CLIENTS FROM 18 TO 32 CHARACTERS www.ibm.com/support/docview.wss?uid=ibm10739501 Regards, Doug Lawry