wrote: I’m unable to use my smart tv
Not much information.
1) what brand of TV?
2) does your tv have a direct ethernet connection?
look up in your tv manual how to access the settings for network connections.
once you read that you simply look for the Fios WiFi SSID select it, enter password and you are on.
easier way is to simply hook an ethernet line from one of the LAN ports on the Verizon router and attach the other to the ethernet port on your tv. If so enabled.