SYMPTOMS
Consider the following scenario. You have the following Microsoft Office Live Communications Server 2005 deployment:
- Your Live Communications Server topology supports remote user access.
- Remote users directly connect to a Live Communications Server 2005 Standard Edition pool or to a Live Communications Server 2005 Enterprise Edition pool through a Live Communications Server Access Proxy. Remote users' traffic does not pass through an intermediate director.
- Remote users who are enabled for Live Communications are configured to communicate with other remote users or with internal users in the enterprise by using instant messaging.
In this scenario, you may experience the following symptom:
- Live Communications Server logon information and presence information appear correctly for remote users. However, instant messages between a remote user and another remote user are not successfully transferred.
RESOLUTION
Hotfix information
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Live Communications Server 2005 service pack that contains this hotfix.
To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:
Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.
Prerequisites
No prerequisites are required to install this hotfix.
Restart requirement
You do not have to restart your computer after you install this hotfix.
Hotfix replacement information
This hotfix does not replace any other hotfixes.
File information
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the
Time Zone tab in the Date and Time tool in Control Panel.
Date Time Version Size File Name
-----------------------------------------------------
02-03-2005 19:55 2.0.5369.52 1,147,592 sipstack.dll
WORKAROUND
To work around this problem, enable the users for federation in Live Communications Server 2005.
Note Do not disable the users for remote user access. The users must be enabled for federation in addition to being enabled for remote user access.
To enable a user for federation, follow these steps:
- Start the Live Communications Server 2005 Microsoft Management Console (MMC) snap-in.
- Expand your forest, expand Domains, expand your domain, expand Live Communications servers and pools, expand your pool, and then click Users.
- In the right pane, right-click a user object, and then click Properties.
- Click to select the Enable federation check box.
Note Do not click to clear the Enable remote user access check box. - Click OK.