PowerShell WebServiceProxy Error

Hello together,

i like to update some data in my SharePoint 2013 Server via PowerShell.

On the Client/Server where the script run, is no SharePoint Server installed. 

To do this i followed this Post for SharePoint 2007: Using New-WebServiceProxy ...

Then i get these Error: 

exception of type 'microsoft.sharepoint.soapserver.soapserverexception' was thrown.
In row:1 char:1+ $service.updatelistitems($listname, $batchelement)+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~+ CategoryInfo          : NotSpecified: (:) [], MethodInvocationException+ FullyQualifiedErrorId : SoapException

Could anyone help? Or has the same problem?

Thanks for your reply.

With kind regards,

Dennis