I like to pay attention more to detailed information of images:
We combined ePMP1000 and 25dbi Dish antenna at both side. Also we upgraded both side to 2.5.2 version firmware too.
The followings screenshot is related to AP side (RSSI -81 dbm):
and this's is SM side image (RSSI: -41 dbm):
It may help you to check status better. What's happening here!