Cannot access the Internet after connecting to the wifi at the train station

You want to ask why you cannot access the Internet after connecting to the wifi at the train station? SMS authentication, signal is unstable.

1. After connecting to the train wifi, you need to enter your mobile phone number for SMS authentication. Sometimes SMS authentication may fail, resulting in an inability to access the Internet.

2. The signal is unstable. Due to factors such as the terrain the train passes through and signal influence, the high-speed rail WiFi signal may be unstable, resulting in inability to access the Internet.