I can only address the same network issue.
by R. Proffitt - 11/18/12 9:59 AM
In Reply to: Pandora App on Samsung Smart Hub have network issues by smartgeek12
That error is one I've seen and usually, most of the time it's the router firewall issue. I will not be able to detail how to turn it off but your router manual should tell you along with what else it could be such as CLIENT ISOLATION or GUEST networking.
Hope this helps,