Are you trying to use the Roku app on your phone in order to connect your Roku TV to the wifi network? If so, I'm sorry, but you won't be able to. The app can only connect to Rokus that are already connected to the same network. The only way to establish the wifi connection for the tv is with a physical remote that works with the Roku TV.
Roku Community Streaming Expert
I am not a Roku employee, only a user like you.
Streaming Stick 4K+ 3821 | Streaming Stick+ 3810 | TCL Roku TV 43S245/C107X | Streaming Stick 3600
If this post solves your problem please help others find this answer by clicking "Accept as Solution.". Please only do this if it ACTUALLY solves your problem.