The Lync team has released the October 2012 updates for Lync Server 2010 and related products. Here are some of the details:

2493736 Updates for Lync Server 2010

Highlights

1. 2735313 No notification of an incoming file transfer when you minimize a Lync 2010 conversation window
2. 2735319 A user name that is included in a Lync Online meeting URL is incorrect when delegate is configured
3. 2735321 “Block all” setting of the global file transfer filter does not work in Lync Server 2010
4. 2735323 A call to an UCMA 3.0 endpoint is disconnected after 30 minutes

KBs

Lync Server 2010

1. 2670358 Description of the cumulative update for Lync Server 2010, Administrative Tools: February 2012
2. 2740403 Description of the cumulative update for Lync Server 2010, Core Components: October 2012
3. 2701659 Description of the cumulative update for Lync Server 2010, Conferencing Attendant: June 2012
4. 2514978 Description of the cumulative update for Lync Server 2010, Conferencing Server: November 2011
5. 2737902 Description of the cumulative update for Lync Server 2010, Web Components Server: October 2012
6. 2737915 Description of the cumulative update for Lync Server 2010: October 2012
7. 2708616 Description of the cumulative update for Lync Server 2010, Web Conferencing Server: June 2012
8. 2640253 Description of the cumulative update for Lync Server 2010, Mediation Server: November 2011
9. 2740406 Description of the cumulative update for Lync Server 2010, Unified Communications Managed API 3.0 Runtime: October 2012
10. 2650037 Description of the update for Lync Server 2010 Bandwidth Policy Service: December 2011
11. 2743736 Description of the cumulative update for Lync Server 2010, Mobility Service: October 2012

Use the cumulative update installer, called LyncServerUpdateInstaller.exe to view and install the needed updates. That update can be downloaded here.

Clients

1. 2737155 Cumulative Updates for Lync 2010
2. 2752160 Cumulative Updates for Lync 2010 Attendee – Administrator level installation
3. 2752157 Cumulative Updates for Lync 2010 Attendee – User level installation

Phone Edition

No updates listed

For information on updating Lync Phone Edition devices, see Jeff Schertz’s article Updating Lync Phone Edition Devices, as well as my script New-CsFirmware.ps1

Group Chat

No updates listed

Installation

Note: Pay close attention to the installation notes listed on the summary page. They include manual tasks that must be followed after installing the updates on Lync servers.

During a recent cross-forest migration, some users reported that after their workstation was moved to the new forest and their account was enabled for Lync, they would get the following prompt immediately after logging in:

Lync Response Groups prompt

Notice that it’s prompting for credentials for Response Groups. This environment had no Response Groups. If the user entered correct credentials, the prompt would just reappear right away. Users could click Cancel, and the prompt would go away, but would return about every 2 hours. Also noticed was that these users would never get a Lync Address Book, either.

This was a greenfield Lync deployment in a new forest that users, workstations, and email was migrated to from many other domains. Checking over the Lync environment yielded no real culprits. Issues with permissions on the Lync share can cause the issue, but those were correct as well. Certificates were also fine. Since only a few users reported the problem (< .1% of all Lync users), and all users in the organization were assigned the same policies in Lync, I became convinced it was a client side issue.

The resolution was to open Internet Explorer, go to Settings>Internet Options>Advanced. Scroll all the way to the bottom and remove the check for Enable Integrated Windows Authentication.

IE Integrated Windows Authentication setting

Click Ok, then reboot the machine. Once rebooted, go back and put the check back in the Enable Integrated Windows Authentication box and reboot again.

This resolved the problem for all of the users having this problem. Not only did the prompt stop appearing, but all users who performed the fix also reported successful address book downloads.

It’s important to note that while just disabling Integrated Windows Authentication generally resolves the prompt for credentials, you really should enable it again as described to avoid issues with other applications and services.