Smart Hub Connection Test
If your TV is having trouble maintaining a network connection or your apps are not connecting to the internet properly, running a Smart Hub Connection Test diagnoses the problem by checking the Internet connection, the Samsung servers, and the Apps services.
The Smart Hub Connection Test is made up of 5 different parts - identifying which one is causing the connectivity issues with your TV will help understand what further troubleshooting steps are required to get your TV back online.
If the TV fails the Gateway test, the router may be preventing the TV from connecting to the internet. Power cycle both the TV and the Wireless Router and try again.
If this fails, the TV is not communicating with the DNS servers. Changing the DNS server address to the Google Public DNS Server (126.96.36.199) may help resolve DNS server issues.
1. Navigate to Settings > General > Network > Network Status > IP Settings
2. Change DNS from Get Automatically to Manual
3. Set server address as 188.8.131.52
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