1. Tool - INTEMET - program - set default value.You debug 2. Is the security level of firewall and browser high?Maybe there is an unknown error. Try restarting 3. Check whether QQ (browser) is the latest version and compatible 4. Whether the network is smooth and stable 5. There is a problem with the browser. It is recommended to clean the cache and try it. 6. Whether the browser is the default browser.Open Computer Manager - Home - Toolbox - Default Program Settings - Browser 7. Directly use Tencent computer butler to solve the problem. Open the computer butler - computer clinic - Tencent special area to repair
