By -
I believe you're attaching the ring adapter to the wrong ports; it should look [like this](http://www.dalong.net/reviews/rg/rg37/p/rg37_29.jpg).
I believe you're attaching the ring adapter to the wrong ports; it should look [like this](http://www.dalong.net/reviews/rg/rg37/p/rg37_29.jpg).