[EC21] No internet connection despite network connection

IoT Modules LTE Standard Module
1

Hi,

I am using the EC21 module on a custom board with a SIM card that works fine in my smartphone having internet connection as well. Unfortunately, I can’t get the same working on my module. Here is the output from several commands:

at+cpin?
+CPIN: READY

at+cops?
+COPS: 0,0,"Telekom.de mobilcom",7

at+creg?
+CREG: 0,1

at+csq
+CSQ: 18,99

AT+QCSQ
+QCSQ: "LTE",78,-105,170,-7

AT+QNWINFO
+QNWINFO: "FDD LTE","26201","LTE BAND 3",1300

AT+QCFG="band"
+QCFG: "band",0x93,0x80800c5,0x0

at+cgdcont?
+CGDCONT: 1,"IPV4V6","internet.v6.telekom","0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0",0,0,0,0

at+qping=1,"8.8.8.8"
OK

+QPING: 561

AT+QIACT?
OK

I have even tried different combinations for the APN:

at+cgdcont=1,"IP","internet.v6.telekom"
at+cgdcont=1,"IP",""
at+cgdcont=1,"IPV4V6","internet.v6.telekom"
at+cgdcont=1,"IPV4V6",""

Of course, each of them followed by an cfun=1,1. Once I managed to get an IP from AT+QIACT? What else can I try? I only want to see at+qping once succeeding.

Thank you!

2

I think it is most likely caused by incorrect APN. I suggest you confirm with SIM card server again

3

After changing to “internet.telekom” it worked immediately!