"System.Net.WebException: The underlying connection was closed" error when installing IaaS in vRealize Automation

Products

• VMware Aria Suite

Issue/Introduction

To work around this issue, you must enable IPv6 on the IaaS server.

Symptoms:

When installing vRealize Automation IaaS component on a Windows 2012 server, you experience these symptoms:

 

• IaaS Installer fails to import Model Manager.
• In the vCACConfiguration.log file, you see entries similar to:
  
  
  "C:\Program Files (x86)\VMware\vCAC\Server\Model Manager Data\RepoUtil.exe" Model-Install -f "C:\Program Files (x86)\VMware\vCAC\Server\Model Manager Data\**********.dll" -s "*********" -d "vCAC" -c "C:\Program Files (x86)\VMware\vCAC\Server\Model Manager Data\**********.xml" -v
  
  System.Net.WebException: The underlying connection was closed: An unexpected error occurred on a receive. ---> System.IO.IOException: Unable to read data from the transport connection: An established connection was aborted by the software in your host machine. ---> System.Net.Sockets.SocketException: An established connection was aborted by the software in your host machine
  at System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size)
  --- End of inner exception stack trace ---
  at DynamicOps.Tools.Common.ModelHelpers.InstallModel(String assemblyFileName, String securityFileName, String server, String catalog, String userName, String password, String httpRootRepository)
  at DynamicOps.Tools.Repoutil.Commands.ModelInstallCommand.Execute(CommandLineParser parser)
  Warning: Non-zero return code. Command failed.
  Prereq fix fails with error [Security][Security].
  
   
• In All.log file of the Management Agent Logs directory, you see entries similar to:
  
  System.Security.SecurityException: Security error.
  at System.Management.Automation.MshCommandRuntime.ThrowTerminatingError(ErrorRecord errorRecord)
  The Zone of the assembly that failed was:

 

Environment

VMware vRealize Automation 6.x
VMware vRealize Automation 7.3.x
VMware vRealize Automation 7.x
VMware vRealize Automation 6.2
VMware vRealize Automation 7.4.x
VMware vRealize Automation 6.2.x
VMware vRealize Automation 7.0.x
VMware vRealize Automation 7.1.x
VMware vRealize Automation Desktop 6.2.x
VMware vRealize Automation 7.2.x
VMware vRealize Automation Desktop 6.2

Resolution

This issue is resolved in VMware vRealize Automation 7.4, available at VMware Downloads.
 

To work around this issue, you must enable IPv6 on the IaaS server:

1. Revert IaaS server(s) to snapshot.
2. Go to Control Panel > Open Network and Sharing Center.
3. Click Change adapter settings in the top-left panel.
4. Double-click on your network connection.
5. Click on Properties.
6. Select Internet Protocol Version 6.
7. Click OK.
8. Reboot the IaaS server(s).
9. Retry the installation.

 

Additional Information

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