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Invalid MAC address on Wifi

My Smart TV has had intermittent WiFi internet connectivity issues which have been quickly resolved by a reset. But now that isn't working. I spent A few hours on Saturday reading similar threads with suggested solutions including resets, inputting DNS codes etc but nothing seems to now fix it. The only thing that works is by connection to the internet by Ethernet cable but as soon as I go wires the MAC drops out. Due to the tv position and hub it is not practical to use a wired connection permanently. I should add that there are no available updates for my model so I am really stuck. Is it terminal for the WiFi card? Can anyone help?

Samsung Moderator
Samsung Moderator

Re: Invalid MAC address on Wifi

So that I may look into this can I have your full model number? 

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