Socket not connected | Telit Cinterion IoT Developer Community
September 14, 2015 - 2:17pm, 3024 views
Hello,
I am using http POST to upload data to a server. The modem used is BGS2-W.
My device is uploading data periodically to the server. Sometimes on opening the connection, I receive the URC ^SIS:0,18, "Socket not connected" from the modem. I close the connection and I retry the upload after 2 minutes. But I keep on getting the same URC. The only way to get out of this situation is to reboot the modem using AT+CFUN=1,1. On rebooting, the upload starts normally again.
I checked for the internet connection and service profile, but they seem to be as per what I have set. The AT+CEER command returns no error (all 0s).
The response to AT1 command:
Cinterion
BGS2-W
REVISION 02.000
The AT command log:
20150912T180002 INFO Modem:AT^SCKS?
20150912T180002 INFO Modem:^SCKS: 0,1
20150912T180002 INFO Modem:AT+CREG?
20150912T180002 INFO Modem:+CREG: 0,1
20150912T180002 INFO Modem:AT^SISS=0,hcContLen,6229
20150912T180002 INFO Modem:OK
20150912T180003 INFO Modem:AT^SISS=0,address,http://testing.ibexis.net/ibexis-upload/data
20150912T180003 INFO Modem:OK
20150912T180003 INFO Modem:AT^SISO=0
20150912T180035 WARN Modem:Resp timeout
^SIS: 0,0,18,"Socket not connected"
20150912T180035 INFO Modem:AT^SICI=0
20150912T180035 INFO Modem:Resp Success : 0,0,0,"0.0.0.0"
20150912T180035 INFO Modem:AT^SISI=0
20150912T180035 INFO Modem:Resp Success : 0,6,0,0,0,0
20150912T180035 INFO Modem:AT^SISE=0
20150912T180035 INFO Modem:Resp Success : 0,18,"Socket not connected"
What could be the reason for continuous socket errors? We can discount the server as on rebooting the modem, it is able to upload to the same server. The socket errors are observed when the device is running for about more than 24 hours.
Thanks and Regards,
Kalyani Kulkarni
Hello,
Please provide ATI1 response to verify the details about the firmware version you are using.
Do you connect to the same address or change it each time.
Regards,
Bartłomiej
Hello,
The ATI1 response is:
Cinterion
BGS2-W
REVISION 02.000
I use the same address each time.
Thanks and Regards,
Kalyani Kulkarni
Hello,
Please make sure that your network connection is not disconnected by the operator.
Please also test with another network operator if you have such possibility.
You could try to upgrade to revision 3. I can provide you with the firmware.
Regards,
Bartłomiej