Why does the connection show network abnormality?

Failure to receive verification analysis may be caused by the following situations: the mobile phone is equipped with interception software and cannot receive verification code. I suggest you get rid of SMS interception of application software or try to change your mobile phone. The mobile phone is turned off, there is no signal for the time being, the payment is overdue, or the verification code and SMS are not received when it is stopped. It is recommended that you restart your mobile phone after paying the fee.

If the mobile phone is used abroad or you can't receive the SMS verification code, I suggest you try to get it again later when the signal network is delayed. SMS storage is full, and SMS verification code cannot be received. I suggest you try to turn your mobile phone on and off.

Extended data

HTTP 404？ An error refers to the fact that the web page pointed by the link does not exist, that is, the URL of the original web page is invalid, which often happens and is difficult to avoid.

For example, the original URL address cannot be accessed due to the change of URL generation rules of web pages, renaming or moving of web pages files, and misspelling of imported links. When the Web server receives a similar request, it will return a 404 status code, telling the browser that the requested resource does not exist.

Baidu Encyclopedia-Error (Network Error)