Unable to connect to London underground WiFi, login and help go around in circles

[Alazarin]

Unable to connect to London underground WiFi, login and help go around in circles and get no results.

[pgn · Accepted solution]

You might need to force-stop the browser on your phone to see the O2 login screen when connecting to WiFi in TfL stations - note the signal goes away in the tunnel between stations, and you'll have to reconnect to The Cloud service at London Overground stations, @Alazarin - more here: 

https://tfl.gov.uk/campaign/station-wifi