网络连接正常但所有浏览器都罢工，可能是由于Winsock设置不当或浏览器缓存问题导致的。为了解决这一问题，你可以按照以下步骤进行操作：
1. 打开命令提示符（以管理员身份运行）。
2. 输入以下命令并按回车键执行：
netsh winsock reset
3. 等待命令执行完成，然后重启计算机。
4. 重新启动浏览器，问题应该已经解决。
如果以上方法无法解决问题，你可以尝试重置Winsock目录。请按照以下步骤进行操作：
1. 打开命令提示符（以管理员身份运行）。
2. 输入以下命令并按回车键执行：
net stop TCP/IP
net stop IPv6
net stop NetBT
net stop NetMeeting
net stop NetServer
net stop NetShare
net stop NetBIOS
net stop NetBEUI
net stop ICMP
net stop DNS
net stop SMB
net stop NetDDE
net stop NetMeeting
net stop NetWare
net stop NetBIOS
net stop NetBEUI
net stop ICMP
net stop DNS
net stop SMB
net stop NetDDE
net stop NetMeeting
net stop NetWare
net stop NetBIOS
net stop NetBEUI
net stop ICMP
net stop DNS
net stop SMB
net stop NetDDE
net stop NetMeeting
net stop NetWare
net stop NetBIOS
net stop NetBEUI
net stop ICMP
net stop DNS
net stop SMB
net stop NetDDE
net stop NetMeeting
net stop NetWare
net stop NetBIOS
net stop NetBEUI
net stop ICMP
net stop DNS
net stop SMB
net stop NetDDE
net stop NetMeeting
net stop NetWare
net stop NetBIOS
net stop NetBEUI
net stop ICMP
net stop DNS
net stop SMB
net stop NetDDE
net stop NetMeeting
net stop NetWare
net stop NetBIOS
net stop NetBEUI
net stop ICMP
net stop DNS
net stop SMB
net stop NetDDE
net stop NetMeeting
net stop NetWare
net stop NetBIOS
net stop NetBEUI
net stop ICMP
net stop DNS
net stop SMB
net stop NetDDE
net stop NetMeeting
net stop NetWare
net stop NetBIOS
net stop NetBEUI
net stop ICMP
net stop DNS
net stop SMB
net stop NetDDE
net stop NetMeeting
net stop NetWare
net stop NetBIOS
net stop NetBEUI
net stop ICMP
net stop DNS
net stop SMB
net stop NetDDE
net stop NetMeeting
net stop NetWare
net stop NetBIOS
net stop NetBEUI
net stop ICMP
net stop DNS
net stop SMB
net stop NetDDE
net stop NetMeeting
net stop NetWare
net stop NetBIOS
net stop NetBEUI
net stop ICMP
net stop DNS
net stop SMB
net stop NetDDE
net stop NetMeeting
net stop NetWare
net stop NetBIOS
net stop NetBEUI
net stop ICMP
net stop DNS
net stop SMB
net stop NetDDE
net stop NetMeeting
net stop NetWare
net stop NetBIOS
net stop NetBEUI
net stop ICMP
net stop DNS
net stop SMB
net stop NetDDE
net stop NetMeeting
net stop NetWare
net stop NetBIOS
net stop NetBEUI
net stop ICMP
net stop DNS
net stop SMB
net stop NetDDE
net stop NetMeeting
net stop NetWare
net stop NetBIOS
net stop NetBEUI
net stop ICMP
net stop DNS
net stop SMB
net stop NetDDE
net stop NetMeeting
net stop NetWare
net stop NetBIOS
net stop NetBEUI
net stop ICMP
net stop DNS
net stop SMB
net stop NetDDE
net stop NetMeeting
net stop NetWare
net stop NetBIOS
net stop NetBEUI
net stop ICMP
net stop DNS
net stop SMB
net stop NetDDE
net stop NetMeeting
net stop NetWare
net stop NetBIOS
net stop NetBEUI
net stop ICMP
net stop DNS
net stop SMB
net stop NetDDE
net stop NetMeeting
net stop NetWare
net stop NetBIOS
net stop NetBEUI
net stop ICMP
net stop DNS
net stop SMB
net stop NetDDE
net stop NetMeeting
net stop NetWare