After adding additional mailboxes to Outlook (Tools > Email Account > Change > More Settings > Advanced > Add), when you retrace your steps you may find that you are unable to remove the additional mailbox(es) because it isn’t listed, even though the mailbox is still visible in the main Outlook pane. When right-clicking on the mailbox and selecting “Close Mailbox – Name” you may receive the following error:

Solution:

Navigate to the following in the registry:

HKCUSoftwareMicrosoftWindows NTCurrentVersionWindows Messaging SubsystemProfilesDefault

Look through each of the folders, and delete the folder that correspond to the additional mailbox(es) causing an issue.

After resetting your password and signing into Lync, you may be repeatedly prompted to enter a user name and password so Lync can connect to Outlook. See below:

Solution

Remove the Microsoft_OC1:uri=username@domain.com:specific:EWS1 entry from Credential Manager (Windows Vault)

When using the SharePoint command-line tool STSADM, you may receive “Command line error.” even though the syntax is correct:

Solution

Manually type out the command rather than copying/pasting from another application such as Internet Explorer. This is caused by the encoding method, particularly any hyphens in the command. Hyphens and dashes vary between ANSI and UTF-8 encoding.

When a Common Area Phone (Hot-desk) is dialled and the call is unanswered, the call disconnects after 20 seconds by default. This number can be increased using the SEFAUtil tool.
Solution
SEFAUtil.exe /server:lyncserver.domain.com user@domain.com /enablefwdnoanswer

/callanswerwaittime:40
For details on implementing SEFAUtil see the following blog: http://support.risualblogs.com/blog/2012/01/11/installing-sefautil-for-lync-server-2010/

Secondary Extension Feature Activation (SEFAUtil) allows Lync administrators to configure call forwarding settings on behalf of other users and query their call routing settings. Below are the steps for implementing SEFAUtil on an existing Lync Front End server:

1. Login to Frontendserver.domain.com, download and install Microsoft Lync Server 2010 Resource Kit Tools Download Here
2. From the Lync Management Shell, run Get-CsSite to find your SiteId. As you can see from the example below, in the test lab our SiteId is Tokyo:

1. Create a variable for $Site by running the following with your SiteId specified. See the example for Tokyo below:

$Site=Get-CsSite –Identity Tokyo

1. Run the following in the Management Shell exactly as below:

New-CsTrustedApplicationPool –id Frontendserver.domain.com –Registrar Frontendserver.domain.com -site $Site.SiteId

1. Run the following in the Management Shell exactly as below:

New-CsTrustedApplication –ApplicationId sefautil –TrustedApplicationPoolFqdn Frontendserver.domain.com –Port 7489

1. Finally, run Enable-CsToplogy from the Management Shell

System Center 2012 Configuration Manager and System Center 2012 Endpoint Protection (previously known as Forefront Endpoint Protection) Release Candidates are now available for download.

New features in the release candidate include:

• Improved endpoint protection functionality, with integrated setup, management and reporting of System Center 2012 Endpoint Protection. (see below)
• Improved application catalog design that provides a better, more responsive experience when requesting and downloading applications.
• New support for Windows Embedded devices, including Windows Embedded 7 SP1, POS-Ready 7, Windows 7 Think PC, and Windows Embedded Compact 7.
• Improved compliance enforcement and tracking, with the ability to create dynamic collections of baseline compliance and generate hourly compliance summaries.
• Platform support for deep mobile device management of Nokia Symbian Belle devices. Pending a platform update by Nokia later this calendar year for these devices, customers will be able to try out the management of Nokia devices with Configuration Manager.

http://www.microsoft.com/download/en/details.aspx?id=27841&WT.mc_id=rss_alldownloads_all

Windows event logging for Lync can be enabled/disabled via the registry by modifying the key below:

HKCUSoftwareMicrosoftCommunicatorEnableEventLogging

The default value is 0 which will not log Lync events in the Application log.

Set the value to 1 to enable Lync Windows event logging.

You may across  Event ID 1022, Error 1245 in the application log of an Exchange 2007 mailbox server. The event can appear frequently and references a mailbox within the description, see the example below:

Solution:

The 1245 error indicates that the mailbox referenced has exceeded the storage limit/quota configured on the mailbox database. To stop the errors occurring, clear down items in the referenced mailbox or re-configure your storage limits on the database:

After creating a Maintenance Cleanup Task to delete old backup files with “.bak” specified as  the File Extension, you may come across an issue where the job completes without error but non of the backup files specified are deleted.

Solution

Specify the file extension as “bak” as the dot is not required

You may find that an incoming call isn’t routed through to a member of an Response Group if their presence status is Away or Busy when the Routing Method for the response group is Parallel:

If all agents in the response group are away or busy, an incoming call may not be routed through to anyone unless a Call Action has been configured on the Queue.

Solution

Set the Routing Method to Attendant. This will call all members of the response group signed into Lync regardless of their current presence status.