Causes
If your Insignia TV will not connect to the internet, your internet provider service could be the problem. Check your internet connectivity by connecting another device to your internet. If your other device fails to connect, contact your internet providers to check for outages in your area. Consider switching to a more reliable provider.
If your Insignia TV will not connect to the internet, it may be because your home wifi settings are restricting access to it. The Insignia TV requires a lot of data in order to stream channels and your Wi-Fi may not support this need. Try adjusting your Wi-Fi settings to allow more data to be used. Consider upgrading to unlimited data. You can also plug the computer directly into an ethernet source, by using one of the USB ports on the back of the television, and a USB to ethernet converter.