Article ID: 291861
Article Last Modified on 10/28/2006
APPLIES TO
- Microsoft Exchange 2000 Conferencing Server
This article was previously published under Q291861
SYMPTOMS
When a user attempts to log on as an authenticated user to schedule a conference by using the Web Conferencing Scheduler, the user may receive the following error message:
CAUSE
This error is displayed when the domain name is not included in the user credentials.
By default, Windows Integrated Authentication, such as NTLM or Kerberos, is enabled on the Conferencing virtual directory in Microsoft Internet Information Services (IIS). If the browser supports Windows Integrated Authentication, it automatically sends the user's domain credentials when the user is logged on to the network. Therefore, if you use Microsoft Internet Explorer, and then click the Log On hyperlink in Web Scheduler, the user's credentials are accepted, and the process occurs transparently.
Because Netscape does not support Windows Integrated Authentication, Netscape users need to authenticate against IIS by using Basic Clear Text Authentication.
RESOLUTION
To resolve this behavior, the user has to enter the information in the following manner:
Username: Domain\Username
Password: Password
Note: The password is case-sensitive.
MORE INFORMATION
For additional information, click the article numbers below to view the articles in the Microsoft Knowledge Base:
265030 Netscape Cannot Browse Intranet Site
264921 INFO: How IIS Authenticates Browser Clients
Keywords: kberrmsg kbprb KB291861
