我正在使用PSCredential对象对一个命令进行身份验证，我需要以不同用户的身份运行该命令。

> whoami
dmn1\srveikafka
> $secpasswd = ConvertTo-SecureString "mypassword" -AsPlainText -Force
> $mycreds = New-Object System.Management.Automation.PSCredential ("srveizookeeper", $secpasswd)
>
> $sess = new-pssession -computername remotecomputer.xyz.com -credential $mycreds
> invoke-command -session $sess -scriptblock {whoami}
dmn1\srveizookeeper

但是当我把这些相同的命令作为powershell脚本运行时，我得到了这个错误。

new-pssession : [remotecomputer.xyz.com] Connecting to remote server remotecomputer.xyz.com failed with the following
error message : Access is denied. For more information, see the about_Remote_Troubleshooting Help topic.
At C:\workstation\add_zookeeper_spn.ps1:13 char:9
+ $sess = new-pssession -computername remotecomputer.xyz.com -credential $mycreds
+         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : OpenError: (System.Manageme....RemoteRunspace:RemoteRunspace) [New-PSSession], PSRemotin
   gTransportException
    + FullyQualifiedErrorId : AccessDenied,PSSessionOpenFailed
Invoke-Command : Cannot validate argument on parameter 'Session'. The argument is null or empty. Provide an argument
that is not null or empty, and then try the command again.
At C:\workstation\add_zookeeper_spn.ps1:14 char:25
+ invoke-command -session $sess -scriptblock {whoami}
+                         ~~~~~
    + CategoryInfo          : InvalidData: (:) [Invoke-Command], ParameterBindingValidationException
    + FullyQualifiedErrorId : ParameterArgumentValidationError,Microsoft.PowerShell.Commands.InvokeCommandCommand

我有没有搞错或遗漏什么？