Check the tvs internet network status then press the down arrow key on the remote once to select the wireless. Try these simple methods to get your tv to connect to wifi.

Harmony Experience Sharp Tvs
Sharp tv wont connect to wifi. How to connect sharp smart tv to internet via wifi take your sharp smart tv remote control and press on the menu button. Only the sharp roku is not working. Bring up the network setup page 1e. Select wireless setup change search. To turn wi fi on tap the wi fi switch to on. Select the internet setup option.
Disconect the tv and reboot once the sharp logo appears you are ready to go. You can connect in three methods. Try turning the tv round so the rear faces towards the router if it then works then its the internal metalwork blocking the wifi it also quite possible that once its connected you can turn. Sharp smart tv not. Then about a month ago the problem expanded to the whole tv not staying connected to wifi and i have to manually connect every morning. Bring up the select.
All my other devices including my insignia roku work fine and stay connected. Enter wireless setup page to move forward with how to connect sharp tv to the internet then with the wireless setup. Choose the wifi network to connect the sharp television with use the remotes up and down arrow keys to move the selector about this list until the desired network is highlighted. After that you need to choose the wireless option in connection type. I have a sharp smart tv led and will not connect to the internet wireless router. After that select network step and choose the connection type option.
The router works with other devices. Scroll to and tap settings. From the home screen tap the all apps icon. Hit the menu button on your sharp tv remote. Add network manuallyheres how to connect your tv to the wi. Select internet setup network setup connection type.
Select wireless for connection type. Unplug the tv for 5 minutes and plug back. The message is invalid gateway. How to connect sharp tv to wifi. Remove power to your router for 5 minutes and plug back in. Be sure you are typing in the correct password password is located on the router itself unplug the modem for 5 minutes and plug back in.
Make sure youve turned on wi fi on your sharp aquos crystal. Im getting to the point were im considering replacing the sharp roku tv all together.