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Troubleshoot connecting computers to the server in Windows Server Essentials

Published: August 21, 2012

Updated: August 23, 2013

Applies To: Windows Server 2012 Essentials, Windows Server 2012 R2, Windows Server 2012 R2 Essentials

This topic applies to a server running Windows Server 2012 Essentials or Windows Server 2012 R2 Essentials, or to a server running Windows Server 2012 R2 Standard or Windows Server 2012 R2 Datacenter with the Windows Server Essentials Experience role installed.

This topic contains troubleshooting guidance for issues that you might encounter when you connect a computer to the server that is running Windows Server 2012 Essentials or Windows Server 2012 R2 Essentials.

noteNote
For the most current troubleshooting information from the Windows Server 2012 Essentials and Windows Server 2012 R2 Essentials community, we suggest that you visit the Windows Server Essentials Forum. The Windows Server Essentials Forum is a great place to search for help, or to ask a question.

This topic provides solutions for the following issues:

Issue

I get a “Package installation did not succeed. Try to install the Windows Server Essentials Connector again. If the issue persists, contact your network administrator” error when connecting a computer to the server

Description

This issue may occur if you connect a computer to a server that is running Windows Server 2012 R2 Essentials while other Windows updates or application installations are pending and the Connector installation is canceled.

Solution

Complete all other updates or application installations. Restart the computers if prompted.

Issue

Cannot join a computer to Windows Server 2012 Essentials

Description

Computers that have non-ASCII characters in the computer name cannot be joined to Windows Server 2012 Essentials. If the computer name includes non-ASCII characters, you receive the error message "An unexpected error has occurred."

Solution

Rename your client computer with a name that contains ASCII characters only, and try to add the computer to Windows Server 2012 Essentials again.

Issue

I get a “The Connector software installation is canceled” error when connecting a computer to the server

Description

To be able to connect a computer to the server, the SYSTEM account must have Full Control permissions on server folders displayed on the Windows Server 2012 Essentials Dashboard. If the required permissions have not been granted, you receive the "The Connector software installation is canceled" error message.

Solution

Grant the SYSTEM account Full control permissions on each server folder.

  1. Open the Windows Server 2012 Essentials Dashboard.

  2. Click Storage, and then click Server Folders.

  3. Right-click the server folder, and then click Open the folder. (If you do not see the Open the folder option, you do not need to set permissions on the folder.)

  4. In the network path at the top of Windows Explorer, click the server share to display shared folders on the server. For example, if the path is Network > Server01 > File History Backups, click Server01.

  5. Right-click a server folder, and then click Properties.

  6. Click the Security tab.

  7. If Full control is not allowed for the SYSTEM account, click Edit, and then click SYSTEM. Under Permissions for System, select the Allow check box beside Full control.

  8. Click OK twice to update the permissions and close Properties.

Issue

I get a “To run this application, you must install one of the following versions of the .NET Framework: V4.5.50709" error when connecting a computer to the server

Description

When you connect a computer to a server that is running Windows Server 2012 Essentials or Windows Server 2012 R2 Essentials, the wizard attempts to install .NET Framework version 4.5.50709 on the computer. However, if an earlier release of .NET Framework version 4.5 is present, the updated release cannot be installed, and the connection attempt fails with this error message: “To run this application, you must install one of the following versions of the .NET Framework: V4.5.50709. Contact your allocation publisher for instructions about obtaining the appropriate version of the .NET Framework.”

Solution

Uninstall .NET Framework 4.5 from the computer, and then connect the computer to the server.

  1. On the Start page of the client computer, open Control Panel.

  2. In Control Panel, under Programs, click Uninstall a program.

  3. Right-click Microsoft .NET Framework 4.5, and then click Uninstall.

  4. After .NET Framework 4.5 is uninstalled successfully, connect the computer to the server. For instructions, see Connect computers to the server. The correct release of .NET Framework 4.5 is installed along with the connector software.

Issue

I get a “The server is not available. To resolve this issue, contact the person responsible for your network.” error when connecting a computer to the server

Description

This can happen if the date and time on the connected computer are not synchronized with the date and time on the server. Windows Server 2012 Essentials and Windows Server 2012 R2 Essentials use the time synchronization service to synchronize the date and time of computers running in a Windows Server 2012 Essentials or Windows Server 2012 R2 Essentials network. Synchronized time is critical because the default authentication protocol uses server time as part of the authentication process. For example, if the clock on a client computer is not synchronized to the correct date and time, Windows Server 2012 Essentials or Windows Server 2012 R2 Essentials authentication might falsely interpret a logon request as an intrusion attempt and deny access to the user.

This can happen if the server’s free memory is less than 5 percent.

This can happen if you already have a VPN connection to the Windows Essentials Server and you try to configure the Connector software off-premise by using a domain address.

Solution

  1. Synchronize the date and time on the client computer with those on the server. Then connect the computer to the server.

  2. Close some applications on the server side, and then connect the computer to the server.

  3. Close the VPN connection, and then connect the computer to the server.

  1. On the Start page of the client computer, open Control Panel.

  2. In Control Panel, click Clock, Language, and Region, and then click Date and Time.

  3. Click Change date and time, set the date and time to the correct date and time, and then click OK.

  4. Click OK, and then close Control Panel.

  5. Try again to connect the client computer to the server. For instructions, see Connect computers to the server.

If you still cannot connect the client computer to the server, make sure that the date and time on the server are correct. If the date and time are not correct, change them.

  1. Log on to the server using the password that you set up during Windows Server 2012 Essentials or Windows Server 2012 R2 Essentials installation and configuration.

    noteNote
    If you are managing the server remotely, you must log on to the server using Remote Desktop Connection.

  2. On the Start page, open Control Panel.

  3. In Control Panel, click Clock, Language, and Region, and then click Date and Time.

  4. Click Change date and time, set the date and time to the correct date and time, and then click OK.

  5. Click OK, and then close Control Panel.

  6. On the client computer, try again to connect the client computer to the server. For instructions, see Connect computers to the server.

Issue

I get an “An unexpected error has occurred. To resolve this issue, contact the person responsible for your network.” error when connecting a computer to the server

Description

If you receive this error message, the WSS Certificate Web Service might not be running.

Solution

Start the WSS Certificate Web Service.

  1. On the server's Start page, open Administrative Tools.

    In Administrative Tools, right-click Internet Information Services (IIS) Manager, and then click Open.

  2. In the navigation pane, click WSS Certificate Web Service.

  3. In the Actions pane, click Start.

Issue

When I try to connect a computer to the server again after an unsuccessful connection attempt, I receive the warning “A computer with this name is already connected to the server”

Description

If an earlier attempt to connect a computer to the server was canceled or interrupted, you might receive the following warning when you try to connect again: “A computer with this name is already connected to the server.” This happens because a certificate was issued when you tried to connect to the server the first time.

Solution If you are sure that no other computer with the same name is already connected to the server, click Next, and then follow instructions to complete the Connect my computer to the server wizard.

Issue

When I attempt to connect a client computer that is running Windows 7 Home to the server, the web page for running the connector software opens, but the client computer cannot connect to the server

Description

If the router on your network has multicast enabled, communications between the server and a client computer running Windows 7 Home Basic or Windows 7 Home Premium do not work correctly.

Solution

Disable multicast on your router. On some routers, that might include disabling the RIP-2M routing protocol. For more information, refer to the documentation provided by the router manufacturer.

Issue

Auto logon stopped working after I connected the computer to the server

Description

If auto logon is set for the user account when you connect the computer to Windows Server 2012 Essentials, the setting is overwritten when the connector software is installed on the computer.

Solution To resolve this issue, when you connect the computer to the server, note the password that is used for the user account. After the connector software is installed, configure auto logon to use that account.

noteNote
The Windows Server 2012 R2 Essentials domain account requires a password that meets the default password policy requirements.

Issue

Uninstalling a prerelease version of the connector software does not remove existing logs

Description

After you update from a pre-release (Beta or RC) version of Windows Server 2012 Essentials to the released version, you must remove the connector software from each computer that was connected to the server, and then connect the computer again to install the released version of the connector software.

However, when you remove the connector software from a network computer, the existing log files in the %ProgramData%\Microsoft\Windows Server\Logs\ folder on that computer are not deleted. If you do not delete the Logs folder, the log files can become corrupt when you connect the computer to the released version of Windows Server 2012 Essentials.

Solution To avoid corruption of the log files, manually delete the Logs folder before you reconnect the client computer to the updated server.

  1. Uninstall the Connector software from the client computer.

  2. Delete the Logs folder from the %ProgramData%\Microsoft\Windows Server\ folder.

  3. Connect the computer to the server again. For instructions, see Connect computers to the server. That installs the released version of the connector software, creating a new Logs folder and log files.

Issue

I want to upgrade the operating system on a client computer

Description

During the installation of the connector software, numerous checks are performed against the client operating system to ensure the client meets all the connector prerequisites. If you upgrade the client operating system after you install the connector software, some of the prerequisites might not be present, and the client connector might fail.

Solution

Before you upgrade your client operating system to a different version (for example, you upgrade Windows XP to Windows Vista or Windows Vista to Windows 7), you should uninstall the connector software. Use Add or remove programs in Control Panel. After the client operating system upgrade is complete, you can reinstall the client connector by opening http://<server>/connect in a Web browser, where <server> is the name of the Windows Server 2012 Essentials server.

If you have already upgraded the client with the connector software installed, use Add/Remove Programs or Programs and Features to uninstall the connector software. Then install the connector software again.

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