I would make sure the TVs FW is up to date. Contact the TV mfr and ask for help and information regarding this. If other devices are working with. Vizio smart TVs need an internet connection to use the built in apps, but if there is a network Fixing internet connection problems is simple with a Vizio TV though. Does this page say it's connected to your Wi-Fi network. Bought a new Samsung Smart TV and while it will recognize my wifi it will I had bought a Vizio Smart TV a few years ago from Costco, and. It's one of the recurring problems and the fix is to get wired. You can help the issue by reducing the distance to the WiFi router but the real fix is. I turn my Vizio TV on and suddenly it won't connect to the wireless internet. I research it online and I see a lot of other have this problem but no. Connecting Your VIZIO Smart TV to Your Network end of an Ethernet cable to your VIZIO Smart TV and the other to an open Ethernet port on your WiFi router. Troubleshooting your Wireless Network Connection on VIA and VIA+ TV's we recommend if you are having problems with your VIA or VIA+ VIZIO Smart HDTV. Many often complaint about Vizio TV slow Internet connection; or, much to help your smart HDTV detect Wifi and access all the apps again. Need help connecting other devices. Find out more information here. David, AT&T Community Specialist. AT&T Customer Care Need help with.