Thales' cellular IoT products business is now part of Telit Cinterion, find out more.

You are here

Community > Forum > Cellular Hardware > ELS61T-E2 connection problems

ELS61T-E2 connection problems | Telit Cinterion IoT Developer Community

Like
0
1
Charlotte Richardson's picture
Charlotte Richardson

June 19, 2019 - 4:45pm, 1246 views

Hello,

I'm very new to this, and so I am sorry if these are easy questions.

I'm trying to connect the ELS61T-E2 with LAN and LTE using an EE SIM. I've followed the instructions to add EE's APN to the list, and also added it via LUCI. However, when the ./3g.sh script tuns, I can see the following messages:

./3g/sh: MCCMNC: ERROR, APN:everywhere...

and if I cat /dev/ttyACM0, I see errors on AT+CIMI and AT+CGDCONT=1,"IP",everywhere. I've tried taking all this out, but tht didn't work either.

Also, do I have to stop this script from running to send AT commands? (This version only has SSH, no telnet, and I can't SSH to port 1234). Sending echo "" to /dev/ttyACM0 doesn't seem to be doing anything either.

Thank you.

1
Comment
Log in or register to post comments
ADAM GEMALTO's picture
ADAM GEMALTO
Jun 21 2019 - 11:07am

Hello Charlotte,
The easiest way to send AT commands would be to send it over the module's serial port - it should be D-SUB9 connector on the terminal housing.
Could you please double check about telnet? Are you sure that your version of terminal doesn't support telnet? What error you get when you try to connect to default telnet port on IP 192.168.1.1?
Regarding port 1234, on this port you can also send AT commands (it will be forwarded via openWRT to the module) but it works over telnet protocol, not ssh. To sum up:
-You can login to openWrt in following ways:
    *192.168.1.1 SSH default port,
    *192.168.1.1 Telnet default port,
    *192.168.1.1 Webinterface
    *192.168.1.1 FTP default port (to access some files)
    Some of those method can not work depending if password is set or not.
-The most convenient ways to communicate with module via AT commands:
    *192.168.1.1 Telnet port 1234,
    *Terminal's serial port

From what I see to change APN is it enough to modify APN in the webinterface (LUCI). Open network -> Interfaces -> WWAN -> edit, provide proper APN and click Save & Apply.

To check why module responds error to AT+CIMI and AT+CGDCONT, you can try to manually send those commands (over the telnet or serial port). Before that please send AT+CMEE=2 to check enhanced error message. Maybe you did not insert SIM card? Some AT commands do not work without SIM card inserted.
Best regards,
Adam