BX3105 TCP Connection Error

IoT Modules
1

AT&F

Sierra Wireless Copyright 2018
BX310x.2.6.3
READY

AT+SRWCFG=1
OK

AT+SRWSTACFG=“SSID”,“Password”,0
OK

AT+SRWSTACON=1

+SRWSTASTATUS: 1,“MEKICSRND”,“70:5d:cc:ac:6f:7e”,3,3,-53
+SRWSTAIP: “192.168.0.12”,“255.255.255.0”,“192.168.0.1”
OK

AT+SRWSTANETCFG=0,“192.168.0.211”,“255.255.255.0”,“192.168.0.1”

+SRWSTAIP: “192.168.0.211”,“255.255.255.0”,“192.168.0.1”

AT+KTCPCFG=,1,6002

+KTCPCFG: 1
OK

AT+KTCPCNX=1
OK

AT+KTCPSND=1,555555
ERROR

I tried the BX3105 module as server. but error displayed above screen.
And I tried AT+KTCPSTART=1 but, CME ERROR : 3

what is CME Error: 3 ? and how to solve this problem?

I need your help T_T…

2

I don’t see there is +KTCP_SRVREQ notification…
Is there client connecting?

3

I don’t see there is +KTCP_SRVREQ notification…
Is there client connecting?

I send the message to client program and the client program send the message to my device.

+KTCP_DATA:3,3 … received.

So I send the message used AT+KTCPSND = 1,55555 and ERROR displayed…

Next message is +KTCP_NOTIF:3,4 and +KTCP_SRVREQ: 1, 4, “myIP”,“Port”.

I set the port number is 6002. but displayed 53262.

what am I doing wrong?

4

please post the full log.

BTW, i saw +KTCPCFG there is a child mode, do you use it?

5

AT&F

Sierra Wireless Copyright 2018
BX310x.2.6.3
READY

AT+SRWCFG=1
OK

AT+SRWSTACFG=“MEKICSRND”,“mekics2773”,0
OK

AT+SRWSTACON=1
OK

+SRWSTASTATUS: 1,“MEKICSRND”,“70:5d:cc:ac:6f:7e”,3,3,-51

+SRWSTAIP: “192.168.0.12”,“255.255.255.0”,“192.168.0.1”

OK

AT+SRWSTANETCFG=0,“192.168.0.211”,“255.255.255.0”,“192.168.0.1”
+SRWSTAIP: “192.168.0.211”,“255.255.255.0”,“192.168.0.1”

AT+KTCPCFG=,1,6002
+KTCPCFG: 1
OK

AT+KTCPCNX=1
OK

+KTCP_SRVREQ: 1,2,“192.168.0.48”,56152

+KTCP_DATA: 2,3,▒w

+KTCP_DATA: 2,3,▒w

+KTCP_DATA: 2,3,▒w

+KTCP_DATA: 2,3,▒w

+KTCP_DATA: 2,3,▒w

+KTCP_DATA: 2,3,▒w

+KTCP_DATA: 2,3,▒w

+KTCP_NOTIF: 2,4

+KTCP_SRVREQ: 1,3,“192.168.0.48”,56153

+KTCP_DATA: 3,3,▒w

+KTCP_DATA: 3,3,▒w

+KTCP_DATA: 3,3,▒w

+KTCP_NOTIF: 3,4

+KTCP_SRVREQ: 1,4,“192.168.0.48”,56154

+KTCP_DATA: 4,3,▒w

+KTCP_DATA: 4,3,▒w

+KTCP_NOTIF: 4,4

+KTCP_SRVREQ: 1,5,“192.168.0.48”,56155

AT+KTCPSND=1,55000
ERROR

…

Thank you

P.S) My document (41111445 Airprime BX310x_AT_command ref r5) is demonstrated
KTCPCFG: 0 – Client mode
KTCPCFG: 1 – Server mode
KTCPCFG: 2 – Chile mode
KTCPCFG: 3 – Secure client (TLS) mode

6

AT+KTCPCFG=,1,6002
not sure why you put 6002 on the remote address.

BTW, i saw +KTCPCFG there is a child mode, do you use it?

I think for +KTCPSND, you have used the wrong session ID.

7

OK. I tried your mention ^^.
I really appreciate it.