error:insufficient_scope after accessing a resource with bearer

[adrian.hoehn]

After a successfull two way handshake is my client not able to access a protected resource. I allways get a insufficient_scope error.

Answere after two way handshake:
{"access_token":"37ded4d3-5278-40b7-b55d-573143d586c7","token_type":"bearer","refresh_token ":"9f772624-cca0-489c-8ba9-e88ccdbf361a","expires_in":43199}

Request header of the resource request:
GET /backed/rest/ping HTTP/1.1
Accept: text/plain, application/json, */*
Authorization: Bearer 37ded4d3-5278-40b7-b55d-573143d586c7

Answere from the server:
WWW-Authenticate: Bearer realm="myprotectedresource", error="insufficient_scope", error_description="Insufficient scope for this resource scopes", scope="SCOPE_TRUST"

I guess that OAuth can not read the authorization bearer from the resource request authorization header. Can that be possible? Any other solutions for this?