@marceloaqno After installing broker and gateway fresh, seems to be working. Thanks for your help.

I using RPi2 and NRF24 for this. I followed the instructions, to clone the repo, and then added config
./configure --my-gateway=mqtt --my-controller-ip-address=127.0.0.1 --my-mqtt-publish-topic-prefix=mysensors-out --my-mqtt-subscribe-topic-prefix=mysensors-in --my-mqtt-client-id=mygateway1 --my-transport=nrf24

make

when i run with sudo ./bin/mysgw -d, it is failing to connect to MQTT. Can you please help?

mysgw: Starting gateway...
mysgw: Protocol version - 2.1.0
mysgw: MCO:BGN:INIT GW,CP=RNNG---,VER=2.1.0
mysgw: TSF:LRT:OK
mysgw: TSM:INIT
mysgw: TSF:WUR:MS=0
mysgw: TSM:INIT:TSP OK
mysgw: TSM:INIT:GW MODE
mysgw: TSM:READY:ID=0,PAR=0,DIS=0
mysgw: MCO:REG:NOT NEEDED
mysgw: MCO:BGN:STP
mysgw: MCO:BGN:INIT OK,TSP=1
mysgw: Attempting MQTT connection...
mysgw: connect: Connection refused
mysgw: failed to connect
mysgw: Attempting MQTT connection...
mysgw: connect: Connection refused
mysgw: failed to connect
mysgw: Attempting MQTT connection...
mysgw: connect: Connection refused
mysgw: failed to connect
mysgw: Attempting MQTT connection...
mysgw: connect: Connection refused
mysgw: failed to connect