Samsungtv hostname null on version 1.8.3

So far, I have openhab controlling my wemo and nest devices. However, I can’t seem to communicate with my Samsung TV. I opened a logged file and when I issue a mute command. I get the following error

2016-12-27 08:37:34.740 DEBUG o.o.b.s.i.SamsungTvBinding[:73]- Received command (item=‘mute’, state=‘ON’, class=‘class org.openhab.core.library.types.OnOffType’)
2016-12-27 08:37:34.743 DEBUG o.o.b.s.i.SamsungTvBinding[:84]- Get connection details for device id 'Livingroom’
2016-12-27 08:37:34.746 DEBUG o.o.b.s.i.SamsungTvConnection[:91]- Creating socket for host null on port 55000
2016-12-27 08:37:34.749 ERROR o.o.b.s.i.SamsungTvConnection[:56]- Could not send command to device on null:55000: java.lang.IllegalArgumentException: hostname can’t be null

I checked the openhab.cfg file and I have an IP address. See below

Host of the first TV to control

samsungtv:livingroom.host=19.18.12.75

Can someone please explain why it is not picking up the IP address