I've put a post in the CNET Networking Forum titled Samsung Owners Start Here to cover some of the more common issues.
What I find most folk have the rough time is when other things work. This can often derail the help process.
But you claim the media router is next to the TV. Why not skip all the WiFi troubles and hook up an Ethernet cable?
I purchased an Samsung UE46ES6300 Smart TV for my Boyfried for Christmas & we are struggling to connect it to our WiFi to use the features. Obviously I went through the procedures - Network settings, found my WiFi, typed in my Network password & unfortunately states: 'Unable to connect to the Wireless Router'. Taking into account my Virgin Media Router is directly next to my TV, I cannot see what the problem is?! The Wireless & Internet is 100% working as we have other devices running of it - I-pad, Laptop, Phones etc!
I have been reading about this issue on the Web & it seems as though its not only me whom has encounterd this problem!
Just a quick thread to seem if anyone can help in solving my problem & can help me in enabling me to connect our new Smart TV to the Internet.
Your help will be much appreciated.