SfB CLS Logging: Understanding the CacheFileLocalMaxDiskUsage

Recently, we were asked about the CacheFileLocalMaxDiskUsage setting in CLS Logging. The issue was when CacheFileLocalMaxDiskUsage was configured to 60% the CLS Logging was returning empty log files. This setting will look at the total disk space used and not specific to used space by CLS log folder. If we configure it to 60 it means … Continue reading SfB CLS Logging: Understanding the CacheFileLocalMaxDiskUsage

SfB Server 2019: Prerequisite not satisfied after CU1 or later

While doing some tests in a lab we had this issue: The only difference was the Skype for Business Server 2019 CU1 was installed recently and the previous version was RTM. Since this was related to the prerequisites for Skype for Business Server 2019 we simply run again the prerequisites: Add-WindowsFeature RSAT-ADDS, Web-Server, Web-Static-Content, Web-Default-Doc, Web-Http-Errors, … Continue reading SfB Server 2019: Prerequisite not satisfied after CU1 or later

Cannot Move SfB OnPrem user to Teams – OAuth_Bearer did not return expected status code from request

We notice an error while trying to move a user from the Skype for Business 2019 OnPrem to Teams: Trying to move on-prem skype for business user to Teams and getting an error Noticed the issue today when i tried to move a user The error i see is Move-CsUser : Hosted Migration Service (https://admin1a.online.lync.com/HostedMigration/HostedMigrationService.svc/OAuth_Bearer) … Continue reading Cannot Move SfB OnPrem user to Teams – OAuth_Bearer did not return expected status code from request

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

Lync/SfB Server: How to fix msRTCSIP-DeploymentLocator when it’s empty/not set

While working on a support case we notice that the AD Attribute msRTCSIP-DeploymentLocator wasn't set for some Skype for Business enabled users. These users could sign in and use the Skype for Business features, however, we decided to make sure all SfB OnPrem users had the correct value - "SRV:" We can use the following … Continue reading Lync/SfB Server: How to fix msRTCSIP-DeploymentLocator when it’s empty/not set

Skype for Business Server 2019 Cumulative Update List: October 2023

The latest updates for Skype for Business Server 2019 and how to update each server role is described here: Updates for Skype for Business Server 2019 Download the latest Cumulative Update for Skype for Business Server 2019 Here is the Cumulative Updates List for Skype for Business Server 2019. Version Cumulative Update KB Article 7.0.2046.530 October 2023 … Continue reading Skype for Business Server 2019 Cumulative Update List: October 2023

Changing Lync/SfB Server PowerShell windows size

A quick way to change the Lync/SfB Server PowerShell window size is to run the following cmdlets: [code language="powershell" light="true"] $pshost = get-host $pswindow = $pshost.ui.rawui $newsize = $pswindow.buffersize $newsize.height = 3000 $newsize.width = 120 $pswindow.buffersize = $newsize $newsize = $pswindow.windowsize $newsize.height = 50 $newsize.width = 120 $pswindow.windowsize = $newsize [/code] However, this change is … Continue reading Changing Lync/SfB Server PowerShell windows size

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

Lync/SfB Server: Certificate assignment location

Usually to check the Lync/SfB Server assigned certificates we simply use the Certificate Wizard (Step 3 in the Lync/SfB Deployment Wizard): Or we can also use a PowerShell cmdlet: Get-csCertificate https://docs.microsoft.com/powershell/module/skype/get-cscertificate However, there is another way... We can go directly to where the assigned certificates information is located. The certificate assignment is stored in XML, … Continue reading Lync/SfB Server: Certificate assignment location