Vizio D500i-B1 - Quickstart Guide - Manual (Page 13)

3
Highlight the name of your wireless network
(this is the network’s SSID) and press OK.
If you do not see your SSID, you will need to enter it
manually by selecting Hidden Network. For more
information, see the TV’s User Manual. Using the on-screen
keyboard, enter your network’s password, then highlight
Connect and press OK.
If you are having trouble connecting
to your network, check your router
placement. It should be in a place with
minimal structural interference like walls
or large metal objects, and away from
any other devices that broadcast at
2.4GHz.