This is the second time that i’m having this problem, and i want to share it to see if it’s a posible bug.
This happens with 2 B5c in a 45km Link. it’s happening with the 1.2 firmware versión that i will update today.
In a moment the RX in one side stops graphing (this time was the AP side, the other time was the Station side) and show a blank in the data, when this happens, packets of 1500 bytes in an OSPF network stops passing by and i have to reboot the links to fix the problem. Here are some pictures before the reboot.