Tonight i called Samsung support and to my surprise the 'invalid MAC address' issue was addressed by the representative within a few minutes... Steps: Power off (plug out from the outlet ) the TV for 30s and plug in Go to Menu->Support ->Self Diagnosis ->Reset This will reset TV settings and will need to power on TV at this point This is new settings and you need to go through setting your language etc. This will try to reconnect ... in my case it connected to my modem but not connected to internet Go to Network -> status -> IP settings and set DNS to 188.8.131.52 Now you are all set and you should be able to connect to Internet Remember, your apps would have been lost and so need to go to Apps and download your favorite ones again I was amazed with the ease with with the representive handled the issue and she helped resolved this issue within few minutes. This is the first time i approached Samsung and they set a great example of customer services ... Kudos to them and i will recommend Samsung products to anyone, going forward. Really impressed!
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