I spend about an hour with Samsung tech and we tried all the same steps. We finally gave up. Tech said I was the first to report this problem. Looks like at least two now.
I was hoping you might be able to help, having an issue with my Start TV UN55ES8000 after a firmware update on 12/9/14 that the service tech from Samsung did remotely on my TV, I am not able to connect to my network.
No issues with the network, all is working fine on all other devices, that has been ruled out.
Spoke to Samsung techs and so far no one is able to help. Still waiting for call backs from escalation support.
Did factory resets several times, that didn't work, after selecting my network and entering the password it still goes to wired network and is not showing wireless.
There is no wired connection, its all wireless.
This started with the firmware update after having Hub problems on the TV.
If I go info setting up wireless network, it doesn't project available networks at all, only when I go trough factory reset mode.