I have compiled the code in Anaren_CCS as well and have the same problem. It seems to connect to the first connected unit, even shows the graph of chip temperature, but refuses to pair with the other unit. We're getting close, but still no cigar. One other odd thing, when using the original firmware chips from TI the hub & sensor show two very different temperature readings, even though the two radios are on the same anti-static mat covered table. :|