1Why did the identification fail?

If the connection is not up and prompted for "authentication failure", there may be:
1、Please check whether the current mobile network is unblocked and whether the VPN speed test can be connected. If you display NA or 0ms, the current network cannot connect to the server, and you can try to switch the WiFi and 3G signals to connect again;
2、Different network operators have different service line stability and speed, so they can try to choose service lines in different areas;
3、Accidental connection is not possible, you can try again;
4、The free account connection to the VIP service line will prompt identification of the failure";
5、If the account number is "disabled", click the refresh button or turn off the APP. If you can't fix it, please contact the customer service;
6、The server list blank is closed and app is reopened。

2How do I select the server line?

How do I select the server line?
1、If access to the site is required for the region, then select a service line in the area;
2、If the video based, it is recommended to use the United States, Japan, Taiwan and Singapore;
3、If the web page, mail based, most of the lines can meet;
4、If you need to visit CCTV, Youku, potatoes and other domestic video sites, please select domestic lines;
5、According to the VPN speed test, the smaller the MS, the higher the success rate of the connection;
6、The server list blank is closed and app is reopened。

3The VPN server did not respond?

If prompted for "VPN server not responding", possible:
1、There are too many server connections currently. Please switch the server and try the connection again;
2、Check that the VPN speed test is connected. If the NA or 0ms is displayed, the current network cannot connect to the server. Try switching the WiFi and 3G signals to connect again;
3、The free account connects to the VIP service line, which prompts the VPN server not to respond";
4、If the server is still unable to connect after the handover, please contact customer service 。