@DianaDiana
Even though it is the correct password, try changing the wifi password (avoid special characters, just use numbers and letters) and then restarting both your router and Roku device.
If it works and you can connect, you can try going back to the old password if you want. (this may or may not work depending on router and device).
Feel free to post your router model number and Roku model number (from Settings/System/About) if still having issues.
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
