SfB Server 2015: Prerequisite installation failed: RewriteModule…failure code 1603

While deploying a new Skype for Business Server 2015 Pool in the lab we got the following error message in the Deployment Wizard Step 2 (bootstrap): Installing rewrite_2.0_rtw_x64.msi( REBOOT=ReallySuppress )...failure code 1603 -------------------- Error Message from rewrite_2.0_rtw_x64.msi---------------------------- Property(S): TTCSupport = 1 Property(S): Time = 11:25:19 Property(S): Date = 4/10/2020 Property(S): MsiNetAssemblySupport = 4.6.1586.0 Property(S): MsiWin32AssemblySupport … Continue reading SfB Server 2015: Prerequisite installation failed: RewriteModule…failure code 1603

SfB Server 2019: Cannot join meeting on SfB Meeting App – UCWA URL not Passed

After Skype for Business Server 2015 CU5 (May 2017) we can enable the Skype Meetings App for SfB OnPrem deployments and this is also supported on Skype for Business Server 2019. We can enable Skype Meetings App with the steps described in this blog post: Enhanced Experience for Meetings Hosted on Skype for Business On-premises … Continue reading SfB Server 2019: Cannot join meeting on SfB Meeting App – UCWA URL not Passed

SfB Server: Cannot install SQL Server 2014 Express SP3

While installing the SQL Server 2014 SP3 we experience the following error: SQL Server Setup has encountered the following error: Exception has been thrown by the target of an invocation. Here is the cmdlet we use: SQLEXPR_x64_ENU.exe /ACTION=Patch /AllInstances /IAcceptSQLServerLicenseTerms Looking at the SQL Setup Bootstrap log we have an exception: C:\Program Files\Microsoft SQL Server\120\Setup … Continue reading SfB Server: Cannot install SQL Server 2014 Express SP3

SfB Server 2015 (KB4464355) could not be installed. Error code 1603.

While installing the Skype for Business Server 2015 CU8 on the Edge Server we had the following error: In the Server.msp-SFBEDGE01-[2019-01-24][10-36-34]_log: MSI (s) (C0:B4) [10:37:04:023]: Executing op: CustomActionSchedule(Action=CA_InstallDBonPatchInstall,ActionType=3073,Source=BinaryData,Target=ExecuteCommand,CustomActionData=powershell -noprofile -command " & Install-CsDatabase -Update -DatabaseType Registrar -Verbose "|C:\Windows\system32\\WindowsPowerShell\v1.0\powershell.exe|C:\Windows\system32\) MSI (s) (C0:B4) [10:37:04:027]: Creating MSIHANDLE (10878) of type 790536 for thread 4788 MSI (s) (C0:20) [10:37:04:027]: Invoking remote … Continue reading SfB Server 2015 (KB4464355) could not be installed. Error code 1603.

Cannot remove the Director Pool – Users or Contacts are associated to it.

While trying to decommissioning a Lync Server 2013 Director Pool we got the following error message when we publish the new topology: This wasn't expected since a Director Pool shouldn't have users associated with it. After troubleshooting the issue, we notice that some users had the attribute msRTCSIP-PrimaryHomeServer associated to the Lync Server 2013 Director … Continue reading Cannot remove the Director Pool – Users or Contacts are associated to it.

SfB Server 2015: Event 57005, LS User Store Sync Agent – Could not find stored procedure XdsQueryCriticalDocumentSignatures

While updating our SfB Server 2015 lab, we notice that a recently updated Front End server had multiple errors and warnings in the Event Viewer: Log Name: Lync Server Source: LS User Store Sync Agent Date: 12/09/2017 21:54:33 Event ID: 57005 Task Category: (1061) Level: Error Keywords: Classic User: N/A Computer: sfbfe03.recore.lab Description: Error encountered … Continue reading SfB Server 2015: Event 57005, LS User Store Sync Agent – Could not find stored procedure XdsQueryCriticalDocumentSignatures

SfB Server: Cannot install KB2982006 – This update is not applicable to your computer.

Update 2018/01/31 - Please note that the fix for this is included in the Skype for Business January 2018 Cumulative Update (CU6 HF1) Prerequisite (KB2982006) not satisfied when you try to install Skype for Business Server 2015 https://support.microsoft.com/kb/4056288 In a recent deployment with all the Windows Updates installed, including the KB2919442 and KB2919355,  we couldn't … Continue reading SfB Server: Cannot install KB2982006 – This update is not applicable to your computer.

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

Lync/SfB 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 … Continue reading Lync/SfB Server: OAuthTokenIssuer, Assigned certificate not found or untrusted.

SfB Server 2015: Cannot install Cumulative Update – Failed to create network share. (-2147467259 xds-replica)

In a recent support case we couldn't install the Skype for Business Server 2015 Cumulative Update on a Edge Server: We checked the Skype for Business Core Components log file (OcsCore.msp-EDGESTD-[2017-03-21][15-30-48]_log.txt) located in %TEMP%: The log showed that the Setup was aborted because it couldn't create a file share: CreateSmb: Error 0x80004005: failed to create … Continue reading SfB Server 2015: Cannot install Cumulative Update – Failed to create network share. (-2147467259 xds-replica)