LWIP server+ STM32 + ENC28J60 + 无RTOS + modbus TCP 之问题：断开连接后 无法重连

mian面mian

数据据如下：
[2021-06-25 13:25:36-988]NET001-发送：[2e 4a 00 00 00 06] 01 4d 12 34 56 78
[2021-06-25 13:25:37-014]NET001-接收：[2e 4a 00 00 00 c9] 01 4d 80 65 55 aa fa 2d 11 22 33 44 55 66 77 10 00 00 00 00 00 00 aa aa 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d aa 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[2021-06-25 13:25:37-127]NET001-发送：[2e 4b 00 00 00 06] 01 4d 12 34 56 78
[2021-06-25 13:25:37-151]NET001-接收：[2e 4b 00 00 00 c9] 01 4d 80 66 55 aa fa 2d 11 22 33 44 55 66 77 e6 00 00 00 00 00 00 aa aa 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d aa 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[2021-06-25 13:25:37-251]NET001-发送：[2e 4c 00 00 00 06] 01 4d 12 34 56 78
[2021-06-25 13:25:37-271]NET001-接收：[2e 4c 00 00 00 c9] 01 4d 80 66 55 aa fa 2d 11 22 33 44 55 66 77 e6 00 00 00 00 00 00 aa aa 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d aa 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00


单片机：作为服务器（只允许连接一个客户端）；
PC：作为客户端
问题： 异常（丢包）断开连接后，无法重连（原因：之前连接的客户端没清空），请问如何断开之前的连接？

嘉神川诺埃尔

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