In addition to being "Unable to retrieve recordings" on the Stream app, I can not login to HBO Go with my xfinity credentials.
Message says "We're having trouble verifying your access to HBO Go with your TV provider. If you continue to have this issue contact your TV provider for assistance."
This happens when I tap on 'xfinity' from the provider menu. It is before I even have a chance to enter my username and password. It happens when the HBO Go app tries to access your backend service to send a request.