ELS61-E no internet connection | Telit Cinterion IoT Developer Community
May 2, 2017 - 8:13am, 7509 views
Hallo,
I have seen similar thread on this forum, but the answer was not very clear (remove spaces...). I have 4G SIM card from SWAN (Slovakia). SIM card is working in 4G mobile phone, but not with ELS61. ELS61 is correctly working with SIM card from other operator. My settings are following:
at^sics=0,contpye,gprs0
at^sics=0,apn,"internet"
at^siss=0,srvtype,smtp
at^siss=0,conid,0
at^siss=0,address,"smtps:// mail server"
at^siss=0,smfrom, "sender address"
at^siss=0,smrcpt, "recipient"
at^siss=0,smsubj,"TEST"
at^siss=0,user,"user account"
at^siss=0,passwd,"password"
at^siss=0,smauth,1
at^siss=0,cmd,msg
Then I will open smtp session with at^siso=0. Next writing message body with at^sisw=0,10 command. Finally, at^sisw=0,0,1. And the response is:
^SIS: 0,0,4400,"Smtp open(smtp.webglobe.sk:465)"
^SIS: 0,0,94,"PDP: connection failed"
So, there is no connection to the internet. I have tested the same with FTP, HTTP or ping command... (Modem is registered to mobile network +CREG: 0,1.)
Please, can you advice? Thank you.
Jano
Hello,
For all the tested IP services the result is the same: "PDP: connection failed" - so it must be something with PDP connection or network registration. As I can see you are using APN "internet" with no user and password fot these connections. So if it's correct for this operator it should also work here. And how about the network registration - is the module registered to 4G or 2G network? Please check these commands: AT+COPS?, AT^SMONI, AT+CREG?, AT+CGDCONT?, AT^SCFG?.
Best regards,
Bartłomiej
Right now I have tested. Also, I added user name and password to at^sics for smtp server we normally use. Still no connection. Here are the commands you asked for:
at^smoni
^SMONI: 4G,1811,3,10,10,FDD,231,03,000A,0014901,7,42,-77,-4.5,NOCONN
OK
at+creg?
+CREG: 0,1
OK
at+cgdcont?
+CGDCONT: 1,"IP","internet.mnc003.mcc231.gprs","",0,0
OK
at^scfg?
^SCFG: "GPRS/AutoAttach","enabled"
^SCFG: "Gpio/****/ASC1","gpio"
^SCFG: "Gpio/****/DCD0","gpio"
^SCFG: "Gpio/****/DSR0","gpio"
^SCFG: "Gpio/****/DTR0","gpio"
^SCFG: "Gpio/****/FSR","gpio"
^SCFG: "Gpio/****/PULSE","gpio"
^SCFG: "Gpio/****/PWM","gpio"
^SCFG: "Gpio/****/RING0","gpio"
^SCFG: "Gpio/****/SPI","gpio"
^SCFG: "Gpio/****/SYNC","std"
^SCFG: "Ident/Manufacturer","Cinterion"
^SCFG: "Ident/Product","ELS61-E"
^SCFG: "MEShutdown/Fso","0"
^SCFG: "MEShutdown/sVsup/threshold","0","0"
^SCFG: "MEopMode/CFUN","0","1"
^SCFG: "MEopMode/CregRoam","0"
^SCFG: "MEopMode/SoR","off"
^SCFG: "MeOpMode/SRPOM","0"
^SCFG: "Radio/Band/2G","0x00000014"
^SCFG: "Radio/Band/4G","0x00080085"
^SCFG: "Radio/Mtpl/2G","0"
^SCFG: "Radio/Mtpl/4G","0"
^SCFG: "Radio/OutputPowerReduction","4"
^SCFG: "Serial/Interface/Allocation","0","0"
^SCFG: "Serial/USB/DDD","0","0","0409","1E2D","005B","Cinterion Wireless Modules
","ELSx",""
^SCFG: "Tcp/IRT","3"
^SCFG: "Tcp/MR","10"
^SCFG: "Tcp/OT","6000"
^SCFG: "Tcp/WithURCs","on"
^SCFG: "Trace/Syslog/OTAP","0"
^SCFG: "URC/Ringline","local"
^SCFG: "URC/Ringline/ActiveTime","2"
^SCFG: "Userware/Autostart","1"
^SCFG: "Userware/Autostart/Delay","0"
^SCFG: "Userware/DebugInterface","0.0.0.0","0.0.0.0","0"
^SCFG: "Userware/DebugMode","off"
^SCFG: "Userware/Passwd",
^SCFG: "Userware/Stdout","null",,,,"off"
^SCFG: "Userware/Watchdog","0"
OK
I did one additional test: setup for socket listener. There should be no login and password for at^sics, (as it might be requested by smtp). Here is my test:
at^siss=3,srvtype,socket
OK
at^siss=3,conid,0
OK
at^siss=3,address,"socktcp://listener:10001"
OK
at^siso=3
OK
at^sisi?
^SISI: 0,2,0,0,0,0
^SISI: 3,3,0,0,0,0
OK
at^sici?
^SICI: 0,1,1,"0.0.0.0"
OK
^SIS: 3,0,94,"PDP: connection failed"
Do you have an idea what is wrong on my side? Thank you.
Jano
Hello,
So you are attached to 4G network and there is only one context defined probably automatically by the network.
This problem is not connected with SMTP ot any particular IP service, for simplicity you could use http to download some website for testing.
You might also force 2G with AT^SXRAT=0 to check if that changes anything.
Have you also tried to use this APN with the mobile?
Please check ATI1 and AT+COPS?.
Regards,
Bartłomiej
Dear Bartlomiej,
I have forced modem to 2G (AT^SXRAT=0) and it works! But operator has changed from SWAN SK to TELEKOM SK. (it is their national roaming partner)
Now I am sure that SWAN is not providing me with correct settings. Please, can you let me know what parameters I should ask them? The only technical point they told me that they are using "dual IMSI applet technology". So, is ELS61-E compatible? Thank you.
Jano
Hello,
There should not be any problem with dual-IMSI. The module just should see another IMSI - you can check it with AT+CIMI command.
You could ask the operator - maybe some separate APN is needed or your subscription does not include data transfer in 4G (but then using 4G would not make any sense). However on the link from Antero it is written that APN Internet2 should work for 4G.
Please paste AT+COPS? and AT+CIMI replies for both network types.
Have you tried to test the SIM card in another device?
Regards,
Bartłomiej
Dear Bartlomiej,
here is the result from requested commands:
at^smoni
^SMONI: 4G,1811,3,10,10,FDD,231,03,000A,0014901,7,--,-76,-5.0,NOCONN
OK
at+cops?
+COPS: 0,0,"SWAN SK",7
OK
at+cimi
231030011499888
OK
at^smoni
^SMONI: 4G,1811,3,10,10,FDD,231,03,000A,0014901,7,43,-75,-4.5,NOCONN
OK
at^sxrat=0
OK
at^smonii
^SMONI: 2G,41,-55,231,02,0001,F1B1,53,53,7,7,E,NOCONN
OK
at+cops?
+COPS: 0,0,"Telekom SK",0
OK
at+cimi
231030011499888
OK
I have tested:
SWAN SIM card in another modem (MC75i - 2G), in Huawei 3G modem, in Samsung LTE mobile. All combinations work. Of course, some settings were connected to roaming (as SWAN has only 4G network).
Also, I tested "internet2" apn. In all combinations it does not work at all. As mentioned before, tech. support from SWAN told me to use "internet".
Really, I have no idea why it is not working. If you have any idea to test, please, let me know. Thank you for help.
Jano
Hello,
So it looks like the IMSI is not changed in case of these two networks.
Generally the same APN should work even in case of roaming.
I think that you could also check the APN "internet.mnc003.mcc231.gprs" and you could try "GPRS6" instead of "GPRS0".
This case might be operator specific - so you could ask your local module supplier if they know about such problems and if they can test it.
Regards,
Bartłomiej
Dear Bartlomiej,
I have tested APN "internet.mnc003.mcc231.gprs" and also changed to GPRS6. Nothing helped. Unfortunately, SWAN just sated that if SIM card is working with other device, they are ok. I will try to find out about local supplier, but as far as I know they have no usabel info....
Thank you for your effort - we will not use SWAN (as they are not very eager to find a reasonable solution).
Jano
Hi!
You are using the "plain" authentication, at^siss=0,smauth,1.
Have you tried at^siss=0,smauth,2?
The APN for the SWAN 4G has changed from 1.1.2017 to "internet2", see:
https://www.swan.sk/domacnosti/pomoc-a-podpora/oznamy/4g-internet-v1.0-k...
Best Regards,
Antero
Antero Markkula
Communication and Mechatronics
Enkom Active Oy – www.enkom-active.fi
Upseerinkatu 3 A, 02600 Espoo, Finland
Mobile: +358 400 411368
Office: +358 10 204 0000
Fax: +358 10 204 0010
E-mail: antero.markkula@enkom-active.fi
Now I have tested at^siss=0,smauth,2 - no connection. I know about new APN, but tech support from SWAN told me to use "internet". But I always tested "internet2" - no difference.
Jano