I've got the same issue. Hulu would not work on my TV and the TV could not connect to the basic Samsung services. It kept saying the server was under maintenance and to check back later.... for months. I finally decided to bite the bullet and reset the TV. Now it gives this ERR-0006 and fails to connect to Smart Hub despite the TV being up to date. I disabled all firewalls and my PiHole yet it still cannot connect. I'm using the same DNS I was using when I originally set it up out of the box.
It's sad that a 6-month old $1,400 TV would eat ***** and die like this. Samsung support hasn't been any better. I can only schedule a tech to come out and take a look at the TV 9 days from now. No other date is available in the next 30 days. It won't even let me schedule the service. It says there was an issue because there is already service requested for this product even though there are no orders for service listed in my account. Instead of pushing for newer and newer products (and decreasing the life expectancy of their products to 5 years from 10+) they should commit to manufacturing and building reliable products and having a customer support experience worthy of their expensive products. I have worked on many Samsung smart products myself and currently work in IT so I know where they make cuts and where they should improve. No one has worse customer support; not even LG.
