Ok, there seems to be much conflicting information. I can understand this because it is hard to get one single definitive answer. I am trying to run the UCS client on a static IP behind a router. The port forwarding seems to be the problem, but I haven't been able to nail it down. Derrick's ports don't seem to be the answer. The ports Derrick mentioned seem to be for the IPECS Communicator. Different for the UCS app. But maybe if I try it without the router. Beats me, I'll try.