The user Accounts in Outlook and SfB do not match error when scheduling a Skype For Business Meeting from Outlook.

Even if there is many information about this error, recently I’ve faced a very interesting situation in an Exchange Hybrid + Skype For Business Environment in which the users were configured with a different Mail Address (SMTP), Skype Address (SIP) and User Principal Name (UPN). The issue: When trying to schedule a meeting on Outlook,… Read more

Lync/SfB: Check client version using PowerShell

During troubleshooting we often need to check the installed version, for Lync/SfB Server we already know how to check the installed version using PowerShell: Skype for Business Server Component Version using Get-CsServerPatchVersion https://blogs.technet.microsoft.com/uclobby/2015/12/08/skype-for-business-server-component-version-using-get-csserverpatchversion/ Skype for Business Server 2015 Component Version using PowerShell https://blogs.technet.microsoft.com/uclobby/2015/05/01/skype-for-business-server-2015-component-version-using-powershell/ Lync Server Component Version using PowerShell (Windows Registry) https://blogs.technet.microsoft.com/uclobby/2014/12/15/lync-server-component-version-using-powershell-windows-registry/ On the client we can check the… Read more

Lync/SfB Server: Stop Front End service in Starting state

Some of the cases we work have the Front End service in a Starting state: In PowerShell the status is StartPending: We cannot stop it on the Services Management Console: We can go to Task Manager and try to manual stop the service: If that doesn’t work we need to Go to Details and End task that is associated with… Read more

Lync/SfB Server: Event 41026, LS Data MCU after May 2017 .NET Framework update

Update 2017/06/28 – In Workaround #1 we also need to request new Front End certificates with Client and Server authentication in the EKU. Recently we notice that Lync Server 2010/2013 and Skype for Business Server 2015 Front Ends were generating the Events 41025 and immediately after the Event 41026: Log Name: Lync Server Source: LS… Read more

Lync/Skype4B Server: OAuthTokenIssuer, Assigned certificate not found or untrusted.

In a recent support case the OAuth certificate was missing in one of the Front Ends: We also notice the Missing message in the Deployment Wizard Step 3, for the OAuth certificate: And in PowerShell we had the following error when we tried to check the certificates: Get-CsCertificate https://technet.microsoft.com/en-us/library/gg398227.aspx Get-CsCertificate : OAuthTokenIssuer: Assigned certificate not found… Read more

Lync Server: Event 41029 LS Data MCU – No connectivity with the Lync Web App

In a recent support case we were working on an issue where sometimes the users couldn’t use the Lync Web App. The troubleshooting started in the Event Viewer > Lync Server, we notice that we had a few errors: Log Name: Lync Server Source: LS Data MCU Date: 01/03/2017 15:00:43 Event ID: 41029 Task Category: (1018) Level:… Read more

Lync/Skype4B Server: Manually update the Edge Server Configuration

In a recent support case we had a case that the customer had some urgency to add a new Allowed Domain to be quickly pushed to his Skype for Business 2015 Edge Servers. However, the replication wasn’t working: Get-CsManagementStoreReplicationStatus | ft -AutoSize https://technet.microsoft.com/en-us/library/gg399052.aspx An easy solution to this is to perform a manual update and… Read more

MSPL: How to monitor calls that are allowed/blocked by CallerIDBlock

While reviewing a comment on Missed call notification when the call is blocked by CallerIDBlock MSPL Script we realize that the calls blocked by the CallerIDBlock are hard to track. An easy way to get an event for each blocked call is to use the Log function: MSPL built-in functions > Log https://msdn.microsoft.com/en-us/library/office/dn439170.aspx The CallerIDBlock previous version (1.1) sends the… Read more

Lync/SfB: User Presence won’t update to DND if the Secondary Monitor is shared

In a recent request we were asked why sharing the Second Monitor wasn’t updating the user presence to Do Not Disturb. The Show me as DND when I share my desktop setting enable/disable the Lync/SfB Client to update the user presence when sharing: However, even with this setting enabled the user presence will only be updated to… Read more

Enabling Lync/SfB Client to use proxy server for SIP traffic instead of trying direct connection

We had some reports that when trying to sign in to Skype for Business Online users were experiencing delays during the sign in process. This behavior was related to environments were the Lync/SfB client is configured to use a Proxy Server to connect to the Skype for Business Online servers. After researching the delay was occurring because the client… Read more