WIN7' s system and most IE8 and IE9 will restrict the Internet lobby. The usual situation is: 1. After logging in, you have been logged in, which means you are logging in. 2. After logging in, I always display a webpage error. 3. You can't select the option of clicking on the back part. In this case, it is only recommended to change the browser before operation. If sometimes you can log in and sometimes you can't, you can click "Online Customer Service" on the home page to reflect this when it appears.