why spwf04sc write data to socket server no action after several successful write action?

[Wsl]

(1) My spwf04sc Module work in AP mode with SPI interface. Firmware version is 1117. The module open socket server on .

(2) Only read data(no write) from socket server which come from PC is OK . (SOCKDR) Read once every 30ms . The Module can receive data successfully.

(3) Only write data(no read ) to socket server once per 30ms to PC has problem.(SOCKDW) ---Pc can receive former several frame data successfully. ---But after that ,when write command head to module, the module no action and INT GPIO9 keep conastant high and not change to low .

The spi Bade rate is 10M. So what's problem ? and How to recovery from this except reset ?