I have a similar problem. I upgraded from 1.3 to 1.4 and my Wiznet gateway does not work. I can ping version 1.3 from my PC and it see the gateway. When I ping 1.4 from my PC it says that the destination address can not be found. I have downloaded the latest Ethernet gateway sketch, but it did not help. Has any other file change that could effect this.
Thanks
John
