I am trying to get the EasySet software working.

I have the OfficeServ Link software installed. It indicates that it is connecting fine to the server. I have the EasySet software installed and configured, including IIS. The site comes up fine, but when I try to log in with an extension and password I get the following Windows Internet Explorer error:

[Login Error]

Any suggestions on what to look for?

FYI: Checked easyset folder permission and they are correct. At one point easyset was working and then we moved over to PABXsoft which caused the easyset not to work. Now we have move away from PABXsoft and would like to get the easyset working again. It seems perhaps the problems is a configuration issue in one of the MMC's but I am unsure what to fix or even if that is really the issue.