Causes and solutions for "session expired" in IE8: 1. generally, for the sake of security, the website will set the access time limit. If there is no operation on the payment page for a period of time, the system will prompt "the session has expired ", you need to close this page and then try again. 2. If the same prompt still appears when you re-open the page, check your browser configuration. (1) Open your browser, open "Internet Options" in the "Tools" menu, click "privacy", and then click "advanced ", check and confirm before "Overwrite automatic cookie processing" and before "Always allow session cookies. (2) If you still receive the same prompt after setting, you can try to clear temporary files on your computer. Method: Open IE, open "Internet Options" in the "Tools" menu, and click "delete file" and "delete Cookies" respectively ". After completing the preceding operations, we recommend that you restart your computer and try again. 3. "protection mode" is provided in IE 8. If "protection mode: enabled" is displayed in the lower right corner of your IE browser, the webpage prompts "the session has expired ", we recommend that you add the current website to the trusted site in IE8 tool-set-security-trusted site to solve this problem. 4. If the above operations still fail to solve your problem, we recommend that you change your browser to view the problem. Do not open the same webpage in multiple windows to avoid errors.