diff --git a/test/powershell/Modules/Microsoft.PowerShell.Management/TimeZone.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Management/TimeZone.Tests.ps1
index cc1652ecd0..a4e64f28cb 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Management/TimeZone.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Management/TimeZone.Tests.ps1
@@ -127,8 +127,13 @@ Describe "Get-Timezone test cases" -Tags "CI" {
 }
 
 try {
-    $defaultParamValues = $PSDefaultParameterValues.Clone()
-    $PSDefaultParameterValues["it:skip"] = !$IsWindows
+    $defaultParamValues = $PSdefaultParameterValues.Clone()
+
+    # Set-TimeZone fails due to missing ApiSet dependency on Windows Server 2012 R2.
+    $osInfo = [System.Environment]::OSVersion.Version
+    $isSrv2k12R2 = $osInfo.Major -eq 6 -and $osInfo.Minor -eq 3
+
+    $PSDefaultParameterValues["it:skip"] = !$IsWindows -or $isSrv2k12R2
 
     Describe "Set-Timezone test case: call by single Id" -Tags @('CI', 'RequireAdminOnWindows') {
         BeforeAll {
@@ -230,4 +235,3 @@ try {
 finally {
     $global:PSDefaultParameterValues = $defaultParamValues
 }
-
diff --git a/test/powershell/Modules/Microsoft.WSMan.Management/ConfigProvider.Tests.ps1 b/test/powershell/Modules/Microsoft.WSMan.Management/ConfigProvider.Tests.ps1
index 0391c217f4..d2d8426549 100644
--- a/test/powershell/Modules/Microsoft.WSMan.Management/ConfigProvider.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.WSMan.Management/ConfigProvider.Tests.ps1
@@ -366,10 +366,18 @@ Describe "WSMan Config Provider" -Tag Feature,RequireAdminOnWindows {
             <Capability Type="Shell"></Capability>
         </Resource>
     </Resources>
-    <Quotas MaxIdleTimeoutms="2147483646" MaxConcurrentUsers="2147483646" IdleTimeoutms="6200000" MaxProcessesPerShell="2147483646"
+    <Quotas MaxIdleTimeoutms="2147483646" MaxConcurrentUsers="{0}" IdleTimeoutms="6200000" MaxProcessesPerShell="2147483646"
         MaxMemoryPerShellMB="2147483646" MaxConcurrentCommandsPerShell="2147483646" MaxShells="2147483646" MaxShellsPerUser="2147483646"></Quotas>
 </PlugInConfiguration>
 "@
+            $osInfo = [System.Environment]::OSVersion.Version
+            $isSrv2k12R2 = $osInfo.Major -eq 6 -and $osInfo.Minor -eq 3
+
+            # On Windows Server 2012R2 MaxConcurrentUsers is limited to 100.
+            $maxConcurrentUsers = if ($isSrv2k12R2) { '50' } else { '2147483646' }
+
+            $fileXml = $fileXml -f $maxConcurrentUsers
+
             Set-Content -Path $testdrive\plugin.xml -Value $fileXml
             try {
                 $plugin = New-Item -Path WSMan:\localhost\Plugin -File $testdrive\plugin.xml -Name TestPlugin2