After AT+QISEND get "PDP DEACTIVATED" response

Hello All,

We are working on the EG95 module as a server mode.

We are facing the “PDP DEACTIVATE” after server send data by AT+QISEND command.

Following are our TCP operation command sequence :

  1. Our GSM module in listening state and wait for the client connection
  2. +QIURC:incoming , upon on this response we get the client ID and IP
  3. Client will send the data to server
  4. +QIURC:recv, upon on this response we get the client ID
  5. now, server know that some data receive from client
  6. server get the receive data from client using, AT+QIRD, clientID, 256\r
  7. server get response and process on it
  8. now server send data to client by AT+QISEND, clientID, dataLength\r
  9. server get the response “>”, (ready for send the data)
  10. server send the data (data+0x1A)
  11. check the no of byte send to client by AT+QISEND, clientID,0\r
  12. client receive data successfully
  13. Step 8 to 12, we follow for successive transmit and receive operation

following case we observe :

  1. After second send receive integration server get “pdp deactivate response”
  2. After client connection to server , we are not getting observe point 1.
  3. Only one data send receive operation, observe point 1 noticed and it is happened in exact 15 sec.

We are unable to understand why server get “pdp deactivate” response.
Please guide us what is the issue.

Thanks,
chintan

Hi, guy, I am so sorry for replying late, your problem is complicated, I need to disscuss with my fellows, I will support you as soon as possible.