RE: Intermittant connection problems

We are running IDS 11.50.FC5 on a Solaris 10 server. We are running HDR, I am not sure if that has any relevance, and this is on the Primary server. Recently, we have started noticing intermittent connection issues. Sometimes the users can connect. Other times, we receive a message similar to the one below. I am not sure if this looks more like an OS network issue, of if this is something internal to Informix. Can someone point me in the right direction? ===================================== Message Log File: /opt/informix/production/tmp/online.log 13:21:29 listener-thread: err = -956: oserr = 0: errstr = bcabrera@pc104.dd.com: Client host or user bcabrera@pc 104.dd.com is not trusted by the server. 13:21:37 listener-thread: err = -951: oserr = 0: errstr = @pc68.dd.com: Incorrect password or user @pc68.dd.com is not known on the database server. 13:24:02 Checkpoint Completed: duration was 2 seconds. 13:24:02 Tue Apr 9 - loguniq 27771, logpos 0xd6d39c, timestamp: 0x4949d06e Interval: 428470 Larry