@Kingfisher1665
There are a few different places you can try and find the MAC address of a Roku device/Roku TV.
The MAC addresses (both wireless and ethernet, if available) should be visible under Settings/System/About.
The MAC address that is available under Settings/Network/About will only display the MAC address of a connected device. (ie. if connected by wifi/wireless, will show the wifi MAC address. If connected by wired, will show the ethernet MAC address. If not connected at all, will not show a MAC address).
You can also see your wifi MAC address by going to Settings/Network/Setup Connection/Wireless and scrolling down to "Private Network". (will display the wireless MAC address in an info box on screen).
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If you do not see your MAC address in any of the above locations, there may be an issue with the wifi module on the RokuTV. Sometimes a Factory Reset will work (press and hold reset button for 15-30 seconds) to resolve issue. Other times, will need to physically replace the wifi module inside TV.
** If you perform the Factory Reset, make sure you have a working physical Roku remote available.
Roku Community Streaming Expert
Just another Roku user... I am not a Roku employee.
Insignia RokuTV, Ultra 4660, Premiere+ 3921, Express 4k+ 3941, Streambar 9102