回答: "Connection closed by foreign host"的错误提示意味着客户端与服务器之间的TCP联接被远程主机关掉了。这种情况一般发生在之前联接过的情况下,再次联接时出现忽然断掉。这个问题一般不与防火墙有关(尽管也可能与防火墙有关,建议检测一下)。当客户端忽然断掉时服务器关闭是什么意思,服务器端的TCP联接处于半打开状态。当下一次同一客户端再度构建TCP联接时,服务器会测量到这个半打开的TCP联接,并向客户端发送一个置位RST的TCP报文,导致客户端显示"connection closed by foreign host"。这是TCP协议本身的保护举措,不是错误。解决这个问题的方式是重新联接服务器服务器关闭是什么意思,即可重新构建TCP联接。123#### 引用[.reference_title]- *1* *2* [Connection closed by foreign host]()[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v92^chatsearchT0_1"}}] [.reference_item]- *3* [Connection closed by foreign host(已解决)]()[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v92^chatsearchT0_1"}}] [.reference_item][ .reference_list ]