<system.serviceModel>

<bindings>
  <basicHttpBinding>
    <binding name="WsdlPortSoap111">
      <security mode="TransportCredentialOnly">
        <transport clientCredentialType="Basic" />
      </security>
    </binding>
  </basicHttpBinding>
</bindings>
<client>
  <endpoint address="http://iais-test.kemsu.ru:80/DekanatService-0_1_1/ws"
    binding="basicHttpBinding" bindingConfiguration="WsdlPortSoap111"
    contract="kemsu.services.p.WsdlPort" name="WsdlPortSoap111">
   </endpoint>
</client>

WsdlPortClient client;
List<Specialities> specialities = new List<Specialities>();
GetSpecialitiesResponse resp = new GetSpecialitiesResponse();
GetSpecialitiesRequest req = new GetSpecialitiesRequest();
req.institute_id = instid;
resp = client.GetSpecialities(req);
Diplom.kemsu.services.p.speciality[] spec = resp.list;

client = new WsdlPortClient();
client.ClientCredentials.UserName.UserName = "user";
client.ClientCredentials.UserName.Password = "pass";

No WS-Security header found

Описание: Необработанное исключение при выполнении текущего веб-запроса.
Изучите трассировку стека для получения дополнительных сведений о данной ошибке и о вызвавшем ее фрагменте кода.
Сведения об исключении: System.ServiceModel.FaultException: No WS-Security header found

[System.ComponentModel.EditorBrowsableAttribute(System.ComponentModel.EditorBrowsableState.Advanced)]
Diplom.kemsu.services.p.GetInstitutesResponse1
Diplom.kemsu.services.p.WsdlPort.GetInstitutes(Diplom.kemsu.services.p.GetInstitutesRequest1 request){
return base.Channel.GetInstitutes(request);
}