I have UE49MU6670U model and i tried enable the developer mode using 12345 option. Apparently it worked however when i am trying to enter the ip address when i restart the tv and check if the IP address is persistent it shows empty IP address.
Did a reset of the TV . still same issue.
Is there something i am missing in the regular steps. I did try with other tv which is 2018 and it worked
Be sure they are on the same WiFi if your computer is on the ethernet they won’t connect. If you have a dual 2.4 Ghz /5Ghz modem have them both connected to the 2.4 GHZ band (especially an older modem).
I have the exact same issue. The IP just doesn’t persist when I enter it. Not only does it not persist, but even when I enter it, when I revisit the same “box” it becomes empty. I tried with a different samsung tv and it works just fine. I did a factory reset, unplugged tv etc and nothing helped. Rebooting, as mentioned above, has nothing to do with this issue.
If anyone has any solution it would be much appreciated, but I feel like the TV software is faulty.