Error with cu6 installation

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Hello ,
how can i know which cu !!! installed on my exchange ? from where can i know the cu version installed ?
also i am trying to install exchange cu6 in one of my customer and it give me the below error 
Error:
The following error was generated when "$error.Clear();
          $maxWait = New-TimeSpan -Minutes 8
          $timeout = Get-Date;
          $timeout = $timeout.Add($maxWait);
          $currTime = Get-Date;
          $successfullySetConfigDC = $false;
          while($currTime -le $timeout)
            $setSharedCDCErrors = @();
            try
              Set-SharedConfigDC -DomainController
$RoleDomainController -ErrorVariable setSharedCDCErrors -ErrorAction SilentlyContinue;
              $successfullySetConfigDC
= ($setSharedCDCErrors.Count -eq 0);
              if($successfullySetConfigDC)
                break;
              Write-ExchangeSetupLog -Info
("An error ocurred while setting shared config DC. Error: " + $setSharedCDCErrors[0]);
            catch
              Write-ExchangeSetupLog -Info
("An exception ocurred while setting shared config DC. Exception: " + $_.Exception.Message);
            Write-ExchangeSetupLog -Info ("Waiting
30 seconds before attempting again.");
            Start-Sleep -Seconds 30;
            $currTime = Get-Date;
          if( -not $successfullySetConfigDC)
            Write-ExchangeSetupLog -Error "Unable
to set shared config DC.";
        " was run: "System.Exception: Unable to set shared
config DC.
   at Microsoft.Exchange.Configuration.Tasks.Task.WriteError(Exception exception, ErrorCategory
category, Object target, Boolean reThrow, String helpUrl)
   at Microsoft.Exchange.Configuration.Tasks.Task.WriteError(Exception exception, ErrorCategory
category, Object target)
   at Microsoft.Exchange.Management.Deployment.WriteExchangeSetupLog.InternalProcessRecord()
   at Microsoft.Exchange.Configuration.Tasks.Task.<ProcessRecord>b__b()
   at Microsoft.Exchange.Configuration.Tasks.Task.InvokeRetryableFunc(String funcName, Action
func, Boolean terminatePipelineIfFailed)"
How can i solve this issue .
I have 2 cas servers and 2 MBX server
cu6 successfully installed
in Cas1 but others not
schema prepared already
need help please
MCP MCSA MCSE MCT MCTS CCNA

Answer 1

Hi,
Agree with Jatin and Amit. In your case, please make sure IPv6 on the network adaptor is turned on and continue the CU6 installation to check the result.
Hope this can be helpful to you.
Best regards,
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