You may need to create an account on your PC WITH A PASSWORD; have encountered other devices/software like that that expect a password, and won't respond unless you enter one -- a valid one, of course.
I have had many problems with the system and have not received a creditable answer from Samsung about anything. I have called for assistance 7 times and they know less about the product than I do. I have figured most of it out and now most everything is working. One problem that is bugging me is I cannot stream from my PC. I can find my PC on the network but when I click on the Icon it wants a user name and Password I input a user name and then it wants a password and no mater what I enter it tells me that the username and or password is wrong, I have no password for my computer so I set one up to give it a try and no luck. I am running windows 7 and this should be a simple procedure. Has anyone been able to figure this out?? I am able to go to utube etc without a problem. I see this problem in other forums not no solutions.