CRM 2013 - Plugin registration tool - authentication failed

Hello all,

I want to use crm plugin registration tool for my plugins, but when i try to connect with it, i received this error:

Source : System.ServiceModel
Method : ThrowIfNegotiationFault
Date : 8/11/2015
Time : 2:21:48 PM
Error : The request for security token could not be satisfied because authentication failed.
Stack Trace : at System.ServiceModel.Security.SecurityUtils.ThrowIfNegotiationFault(Message message, EndpointAddress target)
at System.ServiceModel.Security.SspiNegotiationTokenProvider.GetNextOutgoingMessageBody(Message incomingMessage, SspiNegotiationTokenProviderState sspiState)

In trace i have found the following information:

The Security Support Provider Interface (SSPI) negotiation failed.</ExceptionString><NativeErrorCode>8009030C</NativeErrorCode></Exception></TraceRecord>

I am using trial crm workgroup edition 2013.