Microsoft KB Archive/261281

= XCCC: Unable to Authenticate When You Change the Conference Resource or Extend Time =

Article ID: 261281

Article Last Modified on 10/27/2006

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APPLIES TO


 * Microsoft Exchange 2000 Conferencing Server

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This article was previously published under Q261281



SYMPTOMS
When you attempt to either extend an existing conference time or change the resource location, a Basic authentication dialog box may be displayed that prompts you for the user name and the password, but not for the domain name.



CAUSE
The Basic authentication dialog box may be displayed instead of the Integrated Windows authentication dialog box for any of the following reasons:
 * Basic authentication for the conferencing v-root is enabled, but Integrated Windows authentication is not.
 * The conferencing URL contains the fully qualified domain name (FQDN) of the conferencing server.

If you have not used Microsoft Internet Explorer to define Exception entries about the server domain, and you connect through a proxy server, the proxy server sends authentication that enables you to extend conference time or change resources. However, when you use this configuration, Integrated Windows authentication does not function. Therefore, the computer uses Basic authentication, and a different credentials box is displayed.



RESOLUTION
To resolve this issue, use any of the following methods:

Method One
To enable Integrated Windows authentication for the conferencing v-root:
 * 1) Click Start, point to Programs, point to Administrative Tools, and then click Internet Services Manager.
 * 2) Right-click Conferencing v-root under the Default Web site, and then click Properties.
 * 3) Click the Directory Security tab, and then click the Edit button in the Anonymous access and authentication control section.
 * 4) Click to select the Integrated Windows authentication check box.
 * 5) Click OK, and then click OK again.

Method Two
If you enable Integrated Windows authentication, use Internet Explorer to enter the conferencing server URL information in the Exceptions box on participating clients. Also, configure the computer to bypass the proxy server for local addresses:  Right-click the Internet Explorer icon, and then click Properties. Click the Connections tab, and then click the LAN Settings button. Click to select the Bypass proxy server for local addresses check box. Click the Advanced button. In the Exceptions section, in the Do not use proxy server for addresses beginning with box, type your FQDN in the following format:

. .com

 Click OK three times.</li></ol>

Method Three
When the Basic authentication dialog box is displayed, use the following syntax for authentication:

Site:

Realm:

User Name:

Password:

Method Four
Use the Conference Management Service snap-in to remove the FQDN in the Conference Management Service URL settings; use only the host name.

NOTE: This option is the most radical approach; you must consider this option carefully before you implement it because this change can have global effects.

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MORE INFORMATION
The Integrated Windows authentication dialog box prompts you for the following information:
 * User Name
 * Password
 * Domain

The Basic authentication dialog box prompts you for the following information:
 * User Name
 * Password

Keywords: kbprb KB261281

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