Previous post ID:23300280 described a problem about an Entourage account not being able to connect to an Exchange Server anymore. I'm experiencing exactly the same issue. Basically, everything was working fine this friday. I got back this morning (monday) and 2 of 4 MAC computers couldn't connect to my Exchange server anymore. All the account on the PCs can connect to the server correctly.
I was able to fix one of them by completely removing the account from Entourage and recreating it. I also had to delete the keychain entry for entourage to get it working.
By the way, those 2 MAC are running MAC OS X 10.3.9 and have been working fine for more than 2 years on this network. This is the 2nd time in a month that this problem is happening and I never know where to start troubleshooting. Right now, still 1 of my MAC is not able to connect to the exchange server.
What can I do and what could could be the root cause of this problem.