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PDP: network interface could not start | Thales IoT Developer Community

March 2, 2022 - 3:33pm, 548 views

Hello,

I am using an ELS61T-E2 modem with a software application that sends csv files to an FTP server.
I post below the error that is generated when I try to use a 4G connection.

at&v

ACTIVE PROFILE:

E0 Q0 V1 X4 &C1 &D2 &S0 \Q0

S0:001 S3:013 S4:010 S5:008 S6:000 S7:030 S8:000 S10:002

+CBST: 0,0,1

+CRLP: 61,61,78,6

+CRC: 0

+CMGF: 1

+CSDH: 0

+CNMI: 1,0,0,0,0

+ICF: 3

+IPR: 9600

+CMEE: 0

+DTMF: 0

+CSMS: 0,1,1,1

+CREG: 0,1

+CEREG: 0,1

+CLIP: 0,2

+COPS: 0,0,"Monaco",7

+CGSMS: 1

^SCKS: 0,1

OK

at^smoni

^SMONI: 4G,6350,20,20,20,FDD,212,10,313B,0000E3A,43,30,-98,-15.0,NOCONN

AT+CGDCONT=1,"IPV4V6","internet","",0,0

OK

at+cgdcont?

+CGDCONT: 1,"IP","","",0,0

OK

AT^SICS=0,conType,GPRS0

OK

AT^SICS=0,user,""

OK

AT^SICS=0,passwd,""

OK

AT^SICS=0,dns1,0.0.0.0

OK

AT^SISS=0,"srvType","Ftp"

OK

AT^SISS=0,conId,"0"

OK

AT^SISS=0,"address","ftp://*****:*****@***.***.***.***:21/"

OK

AT^SISS=0,"cmd","append"

OK

AT^SISS=0,"files","prova_fabio_els61_monaco_4G.csv"

OK

at^smoni

^SMONI: 4G,6350,20,20,20,FDD,212,10,313B,0000E3A,43,30,-98,-15.5,NOCONN

OK

AT^SISO=0

OK

^SIS: 0,0,2100,"Ftp open(***.***.***.***:21)"

^SIS: 0,0,94,"PDP: connection failed"

 

The "Monaco Telecom" provider informs me that the SIM used is 4G enabled and that I have to use the "internet" APN.
Unfortunately only if I force the modem on a 2G connection using the command "AT^SXRAT=0", the software application is able to send the csv file to the FTP server.
The "AT^SCFG="GPRS/AutoAttach" parameter is also enabled.
Where am I wrong?

Thank you for support,

Fabio