There are lots of Smart TVs out there and they all need a network connection in order for those smarts to work for you.
Although our support staff cant really walk you through step by step, we have put together a list of common support channels you can go through to get these devices issues solved.
 Phone- 1-888-935-8880 Support website- https://www.hisense-usa.com/support |  Phone- 1-800-243-0000 Support website- https://www.lg.com/support |
 Phone- 1-844-334-2355 Support website- https://www.onn-support.com/ |  Phone- 1-800-722-9377 Support Website- https://www.usa.philips.com/c-e/so/televisions/support-page.html |
RCA Phone- 1-888-977-6722 Support website- https://rca-televisions.com/product-support/ |  Phone- 1-800-726-7864 Support website- https://www.samsung.com/us/support/ |
 Phone- 1-800-788-2878 Support website- https://www.sceptre.com/support/ |  Phone- 1-239-245-6356 Support website- https://www.sony.com/electronics/support |
 Phone- 1 (877) 300-8837 Support website- https://support.tcl.com/ |  Phone- 1-855-472-8817 Support website- https://support.vizio.com/ |