SBA - The user is not authorized to make this management request

when i install Web component for Dynamics GP 2016 web client and SBA in single tenant mode if i use SSL for Dexterity Service Control, https://myhostname:portnumber/GPService/Management/Diagnostics will return
"HostStatusMessages": [],
"RoutingTable": [],

Both Web client and GP service are not working
 
otherwise i get good result:

"HostStatusMessages": [
    {
      "Timestamp": "2016-09-09T12:05:36.4231425-04:00",
      "HostId": "mymachine",
      "FullMachineName": "mymachine.mydomain.local",
      "MemoryUtilizationPercent": 53,
      "InstanceMessages": [
        {
          "Instance": "DEFAULT",
          "GPVersion": "16",
          "DexterityServiceFileVersion": "1.0.252.0",
          "DexterityRuntimeFileVersion": "16.00.0027.000 ",
          "Status": "Running",
          "HttpRequestAddress": "http://mymachine:48665/DS/DEFAULT_16/",
          "HttpManagementAddress": "http://mymachine:48665/DS/DEFAULT_16/Management",
          "TenantMessages": [
            {
              "Name": "DefaultTenant",
              "Revision": "43574fcb8aaa800119a968e9b01f593bc54ce136",
              "ProcessLoad": 1.0
            }
          ]
        }
      ]
    }
  ],
  "RoutingTable": [
    {
      "HostId": "mymachine",
      "TenantName": "DefaultTenant",
      "Instance": "DEFAULT",
      "GPVersion": "16",
      "ForwardingBaseAddress": "http://mymachine:48665/DS/DEFAULT_16/",
      "ProcessLoad": 1.0
    }
  ],
 
we are not able use SSL for  Dexterity Service Control?

In both cases when i call https://myhostname:portnumber/GPService/Tenants(DefaultTenant)/Utility/Ping.xml
i always get
 <?xml version="1.0"?>
-<DexResponse>
-<RequestError>
<CorrelationId>302ba2e1106946d69767e421c17c102a</CorrelationId>
<HttpCode>403</HttpCode>
<ErrorCode>ApplicationLoginFailure</ErrorCode>
<Source>DexterityProcess</Source>
<Message>The specified user is not authorized to perform operations in this context.</Message>
</RequestError>
</DexResponse>

Log shows:  2016-09-12_11:59:45.042 (E) --> InternalManagementCallError :: CallId:[608], Uri:[http://mymachine:48665/Control/Management/HostStatus], Method:[GET], OuterCode:[404], InnerCode:[200], InnerError:[An error occurred while sending the request. -- Unable to connect to the remote server], ElapsedMs:[2000]

If I manually call  mymachine/.../HostStatus from IE, this link returns ManagementAuthorizationFailure, DexterityServiceControl: The user 'mydomain\username' is not authorized to make this management request.
but 'mydomain\username' is a member of Windows administrators.

Does anyone can help me for this? thanks a lot.