Why can't the mobile version of 99 Library Network be opened?

The reason why it can't be opened may be that the network environment where the mobile phone is located is not good or the mobile phone firewall blocks the website. Some website computers can log in, but the reasons why mobile phones can't log in may be as follows: First, the network environment where mobile phones are located is not good, such as no internet connection. Second, the mobile phone firewall blocks the website. Third, there is an error in the mobile browser. Fourthly, WAP website is only for computer login. Suggested solutions: first, check the network connection status to ensure that there is no error in network connection; Second, check the mobile phone security software to see if the website is blocked and unsealed. Third, try again in a different browser.