wireshark 抓包时无响应，win7系统wireshark3.6和wireshark4.0都安装试了下，发现一运行就无响应，官网手册查看system requirements

Older versions of Windows which are outside Microsoft’s extended lifecycle support window are no longer supported. It is often difficult or impossible to support these systems due to circumstances beyond our control, such as third party libraries on which we depend or due to necessary features that are only present in newer versions of Windows such as hardened security or memory management.

• Wireshark 3.6 was the last release branch to officially support 32-bit Windows.
• Wireshark 3.2 was the last release branch to officially support Windows 7 and Windows Server 2008 R2.

wireshark已经不对win7提供支持，需要下载更早的版本，找了3.05版本安装，问题解决