How do you connect your pucks to the world?

Sorry for my late response. I tried your advice to remove the naming, but the output is identical.

Config loaded
MQTT Connected
<HTTPProxy> Bleno State poweredOn
<HTTPProxy> Bleno.startAdvertising Success
<HTTPProxy> Bleno.setServices Success
Scanning started...
MQTT>/ble/write/c9:88:f0:97:da:57/nus/nus_tx => "LED1.set();\\n"
Service 	6e400001b5a3f393e0a9e50e24dcca9e
Characteristic 	6e400002b5a3f393e0a9e50e24dcca9e
<Connect> Error Connecting

Tue Dec 13 2016 19:30:16 GMT+0100 (CET)

5a:8b:0c:72:57:56 - ? (RSSI -66)
68:d9:3c:8e:46:b3 - ? (RSSI -43)
c9:88:f0:97:da:57 - Puck.js da57 (RSSI -84)
  1809 => {"temp":102}