@OldSurferDude use a host name for the broker in the configure command (--my-controller-url-address=). Add the host name to /etc/hosts on the rpi where the gateway is. Start the MySensors gatway.
When you want to switch brokers, modify /etc/hosts again and restart the MySensors gateway.
@Yveaux
Should have dove deeper when you fist said radio, looks like everything was taken care off except the radio power. Jumped a wire over there and bang worked.
Thanks again for the help.