I was watching tv the other day and one of the kids unplugged the modem, when the modem swicted back on again the tv couldnt find the signal. This has probably happened to me half a dozen times. The only solution that has worked for my is to unplug the tv and plug one of the modem cables into the back of the tv, then go to the internet setting and change to 'wired' then i watched netflix for a while then the wireless worked fine again. I dont know much about this stuff but we dont have a fixed IP address, if IP address changes maybe the TV gets confused. Changing the dna settings didnt work for me. Surprising samsung doesnt come into this forum and solve the proble,
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This should work. Plug your tv into a wired internet connection, (i had to unplug my tv and move it over near my computer to do this). Turn your tv on, press the menu button (bottom right hand button on my remote) and go down to network and scroll accross to network settings. Naviate until you can choose wired (instead of wireless). if your tv accepts that go on to netflix or similiar and watch a program for 5 or 10 minutes. Then turn your tv off and move back to where it was (in my case back into my tv cabinet), turn tv back on. follow these instructions again this time select wireless (instead of wired) and you should be able to select your wireless network and your back in business.
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