@Keyana
If you have a mobile hotspot available to you, try connecting your RokuTV to it. (helps verify that the hardware is working).
If the above is working, then will need to determine what your router settings are currently configured to.
Are you getting any error messages on screen?
Who is ISP (internet service provider) and what is the router model number (sticker on side or bottom of router)?
Roku Community Streaming Expert
Just another Roku user... I am not a Roku employee.
Insignia RokuTV, Ultra 4660, Premiere+ 3921, Express 4k+ 3941, Streambar 9102