Error: The WinRM client received an HTTP status code of 456 from the remote WS-Management service

When connect to an Outlook Live Powershell session you get:

[ps.outlook.com] Connecting to remote server failed with the following error message : The WinRM client received an HTTP status code of 456 f
rom the remote WS-Management service. For more information, see the about_Remote_Troubleshooting Help topic.
    + CategoryInfo          : OpenError: (System.Manageme....RemoteRunspace:RemoteRunspace) [], PSRemotingTransportException
    + FullyQualifiedErrorId : PSSessionOpenFailed
Import-PSSession : Cannot validate argument on parameter 'Session'. The argument is null. Supply a non-null argument and try the command again.
At line:3 char:17
+ Import-PSSession <<<<  $Session
    + CategoryInfo          : InvalidData: (:) [Import-PSSession], ParameterBindingValidationException
    + FullyQualifiedErrorId : ParameterArgumentValidationError,Microsoft.PowerShell.Commands.ImportPSSessionCommand

or

When trying to run the Outlook Live MA may get an stopped-extensible-extension-error with the following stack trace:

"Microsoft.MetadirectoryServices.ExtensibleExtensionException: Connecting to remote server failed with the following error message : The WinRM client received an HTTP status code of 456 from the remote WS-Management service. For more information, see the about_Remote_Troubleshooting Help topic.

 at Microsoft.Exchange.XmaConnector.PSDataProvider.ReportError(Exception e, ScorecardCounter scorecard)
 at Microsoft.Exchange.XmaConnector.PSDataProvider.InvokeCmdlet(PSCommand cmd)
 at Microsoft.Exchange.XmaConnector.PSDataProvider.ReportScorecard()
 at Microsoft.Exchange.XmaConnector.XmaExportExLabs.ReportScorecard()
 at Microsoft.Exchange.XmaConnector.MAExtension.IlmMAExtension.EndExport()
Microsoft Identity Integration Server 3.3.1139.2"

This error occurs when the account that you are connecting with is blocked for sign-in as can be seen below.



You will need to contact the Live@Edu support services in order to resolve this issue