If doing the above soft reset did not work, what you need to do now is to double-check your connections. This is where you need to move over to your router. After your soft reset, did your router reestablish the connection between your modem and the Internet? Are you able to surf the web on other devices using that Wi-Fi connection? If you are unable to visit a website on your smartphone and your router hasn’t connected back to the Internet, then something is wrong with your router and not your Samsung television.
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Let’s say your router and the Internet are working fine. The next step you should take would be to directly connect your Samsung TV with your router or modem using an ethernet cable. In general, a wired connection will be more stable than a wireless one. Using an ethernet cable to directly connect the two could also clear up any firmware issues present, as sometimes the TV will update when connected. This will require you to take your router or modem and bring it relatively close to your television so that your ethernet cable can reach both devices.
This does sound like it defeats the purpose of having a Wi-Fi option available, but if it is working soundly with every other device in your home, then you know that the problem likely has something to do with the wireless hardware in the TV itself. In this case, you may need to take it for repair or to check whether it’s still under warranty, but before doing that, you can try a few more things.
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