Responding error when sending data from EC200S-CN to the server

Hi, I have been facing issues sending text string to a server.
TCP Send :
17:24:06.875 → Attaching to PS service
17:24:07.173 → AT+CGATT=1

17:24:07.173 → OK
17:24:08.169 → Configuring Network Search Mode
17:24:08.467 → AT+QCFG=nwscanmode,0

17:24:08.467 → OK
17:24:09.463 → Configuring Roaming Service
17:24:09.761 → AT+QCFG=roamservice,2

17:24:09.761 → OK
17:24:10.758 → Checking Operator
17:24:11.057 → AT+COPS?

17:24:11.057 → +COPS: 0,0,“IND airtel”,7
17:24:11.057 →
17:24:11.057 → OK
17:24:12.054 → Attaching to GPRS
17:24:12.353 → AT+QCFG=gprsattach,1

17:24:12.387 → OK
17:24:13.384 → Configuring Service Domain
17:24:13.683 → AT+QCFG=servicedomain,2

17:24:13.683 → OK
17:24:14.679 → AT+QCFG=urc/cache,1
17:24:14.978 → AT+QCFG=urc/cache,1

17:24:14.978 → OK
17:24:15.975 → AT+QINDCFG=datastatus,1,1
17:24:16.274 → AT+QINDCFG=datastatus,1,1

17:24:16.274 → OK
17:24:17.270 → AT+CGPADDR=1
17:24:17.569 → AT+CGPADDR=1

17:24:17.569 → +CGPADDR: 1,“10.220.116.129”
17:24:17.569 →
17:24:17.569 → OK
17:24:18.569 → AT+QISTATE=1,1
17:24:18.869 → AT+QISTATE=1,1

17:24:18.869 → +QISTATE: 1,“TCP”,“<Server_ip>”,8443,0,4,1,1,0,“uart1”
17:24:18.869 →
17:24:18.902 → OK
17:24:19.865 → AT+QIDNSGIP=1,2
17:24:20.164 → AT+QIDNSGIP=1,2

17:24:20.198 → OK
17:24:20.198 →
17:24:20.198 → +QIURC: “dnsgip”,0,1,10
17:24:20.198 →
17:24:20.198 → +QIURC: “dnsgip”,“0.0.0.2”
17:24:21.194 → AT+QPING=1,<Server_ip>,1,1
17:24:21.493 → AT+QPING=1,<Server_ip>,1,1

17:24:21.493 → OK
17:24:22.489 → AT+QICSGP=1,1,3
17:24:22.787 →
17:24:22.787 → +QPING: 0,“<Server_ip>”,32,385,53
17:24:22.787 →
17:24:22.787 → +QPING: 0,1,1,0,385,385,385
17:24:22.787 → AT+QICSGP=1,1,3

17:24:22.787 → OK
17:24:23.784 → AT+QIDEACT=1
17:24:24.082 → AT+QIDEACT=1

17:24:24.082 → OK
17:24:25.080 → AT+QIACT=1
17:24:25.379 → AT+QIACT=1

17:24:25.379 → OK
17:24:26.376 → AT+QIOPEN=1,1,TCP,<Server_ip>,8443,0,0
17:24:26.674 → AT+QIOPEN=1,1,TCP,<Server_ip>,8443,0,0

17:24:26.708 → OK
17:24:26.708 →
17:24:26.708 → +QIOPEN: 1,0
17:24:27.705 → AT+QISDE=1
17:24:28.004 → AT+QISDE=1

17:24:28.004 → OK
17:24:29.001 → AT+QICFG=transpktsize,20
17:24:29.300 → AT+QICFG=transpktsize,20

17:24:29.300 → OK
17:24:30.297 → AT+QICFG=transwaittm,4
17:24:30.596 → AT+QICFG=transwaittm,4

17:24:30.596 → OK
17:24:31.593 → AT+QICFG=dataformat,0,0
17:24:31.892 → AT+QICFG=dataformat,0,0

17:24:31.892 → OK
17:24:34.186 → AT+QICFG=viewmode,0
17:24:34.485 → AT+QICFG=viewmode,0

17:24:34.518 → OK
17:24:35.515 → AT+QICFG=tcp/keepalive,1,30,25,3
17:24:35.814 → AT+QICFG=tcp/keepalive,1,30,25,3

17:24:35.814 → OK
17:24:36.811 → AT+QICFG=recvind,1
17:24:37.110 → AT+QICFG=recvind,1

17:24:37.110 → OK
17:24:38.107 → AT+QICFG=tcp/retranscfg,3,1000
17:24:38.406 → AT+QICFG=tcp/retranscfg,3,1000

17:24:38.406 → OK
17:24:39.404 → AT+QICFG=send/buffersize,1460
17:24:39.703 → AT+QICFG=send/buffersize,1460

17:24:39.703 → OK
17:24:40.700 → AT+QICFG=send/auto,1,30
17:24:40.999 → AT+QICFG=send/auto,1,30

17:24:41.032 → OK
17:24:42.030 → AT+QICFG=formatcfg,0
17:24:42.328 → AT+QICFG=formatcfg,0

17:24:42.328 → OK
17:24:43.325 → AT+QICFG=qisend/timeout,1
17:24:43.624 → AT+QICFG=qisend/timeout,1

17:24:43.624 → OK
17:24:44.620 → AT+QISEND=1,10,1234567890
17:24:44.919 → AT+QISEND=1,10,1234567890

17:24:44.919 → ERROR
17:24:45.916 → AT+QIGETERROR
17:24:46.216 → AT+QIGETERROR

17:24:46.216 → +QIGETERROR: 552,invalid parameters
17:24:46.216 →
17:24:46.216 → OK

Hi,I looked AT it and I think it’s a command format problem. The correct format is AT+QISEND=1,10 and then “>”. The symbol is followed by the content.
image

I am able to send data to the server but the TCP socket connection gets disconnected in 3 minutes 23 seconds.