"Failed to find a transport to host 66.xxx.xxx.xxx"??

[ehality]

:!: I started to test 3CX Phone System Version5.0.3385.0
on windows 2003
and I got this message

DeviceRecord:eviceRecord [CM305004]: Failed to find a transport to host 66.xx.xxx.xxx

(66.xx.xxx.xxx is my server ip)
I also noticed that the server is not connecting to STUN at all

I wonder what does it mean? is it related to the DNS (I have no DNS configured under my static IP configuration which is very wierd to me)

 

[ehality]

Any one to Answer please
This is really URGENT

Thanks
Ehality