Thanks for all the posts concerning this same problem that seemingly has been happening for the past 2 years. My TV was bought in Oct 2016 and a few days ago in the middle of a Netflix Movie I no longer had an internet connection. I tried all of the suggestions from prior posts, change DNS, change IP, reset router, sacrifice 1st born to the TV gods, etc. After about 4 hours of troubleshooting last night (1/9/2017) I came across one that finally worked for me even though I supposedly did not have internet connection. My laptop, phone and my other smart Samsung TV were working fine with good internet connection. I did a factory reset of the TV following steps from this link for 2016 TVs: http
/www.samsung.com/au/support/skp/faq/1116455 using 0000 as the default PIN on Step 6. It took about 30 mins to do the reset but it worked and I was finally connected to the Internet and could see my Apps on Smart Hub such as Netflix and Amazon. I re-logged back into the 2 Apps to verify I could watch movies from both, success!!. Frustrating process to fix a problem I did not create. Lock up any firearms you may have as you will want to shoot your TV. Hopefully this information will work for you and save you the frustration I had, good luck!
Link for older year Samsung TVs reset steps: http
/www.samsung.com/au/support/skp/faq/1039433

Link for older year Samsung TVs reset steps: http
