Invalid App ID
Proxima
Since it does authenticate everywhere else I install this, I have to conclude it's a server issue.
String credentials = ClientMap.PROXIMA_CLIENT_KEY + ":" + ClientMap.PROXIMA_CLIENT_KEY;
String base64EncodedCredentials = Base64.encodeToString(credentials.getBytes(), Base64.NO_WRAP);
request.addHeader("Authorization", "Basic " + base64EncodedCredentials);