Click or copy and paste http://192.168.1.254/basic_-_status.htm into the address bar on your browser.
Check BT Wi-Fi status against the below
To check if you're BT Broadband account is Opted in to BTWifi, which you should be automatically when you sign up for BT Broadband, you need to log onto your MyBT then go to "Your Products" and scroll down to "BTWifi". Click on "Learn More" then scroll down to "Opt out of BTWifi".
If you are "Opted Out" you will be given the option to "Opt in" and conversely if you are already opted in you will be given the option to opt out.