PDP: network interface could not start | Telit Cinterion IoT Developer Community
March 2, 2022 - 3:33pm, 1245 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
Hello,
You haven't set this APN with SICS command. Please do and try again.
BR,
Bartłomiej
Here is the test carried out in both 2G and 4G modes
AT^SXRAT=6,3,0
OK
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+CGDCONT=1,"IP","internet","",0,0
OK
at^smoni
^SMONI: 4G,6350,20,20,20,FDD,212,10,313B,0000E3A,43,26,-140,-20.0,NOCONN
OK
at^smoni
^SMONI: 4G,6350,20,20,20,FDD,212,10,313B,0000E3A,43,--,-101,-10.0,CONN
OK
AT+CGDCONT?
+CGDCONT: 1,"IP","","",0,0
OK
at+cops?
+COPS: 0,0,"Monaco",7
OK
ati1
Cinterion
ELS61-E R2
REVISION 02.000
A-REVISION 01.000.05
OK
AT+CREG?
+CREG: 0,1
OK
AT+CREG=2
OK
AT+CREG?
+CREG: 2,1,"313B","00000E3A",7
OK
at^smoni
^SMONI: 4G,6350,20,20,20,FDD,212,10,313B,0000E3A,43,26,-102,-11.5,NOCONN
AT+CIMI
212103300061070
OK
AT+CSQ
+CSQ: 6,99
OK
at^smoni
^SMONI: 4G,6350,20,20,20,FDD,212,10,313B,0000E3A,43,--,-102,-11.5,CONN
OK
AT^SICS=0,conType,GPRS0
OK
AT^SICS=0,apn,"internet"
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://****:****x@***.***.***:21/"
OK
AT^SISS=0,"cmd","append"
OK
AT^SISS=0,"files","prova_fabio_els61_monaco_4G.csv"
OK
AT^SISO=0
OK
^SIS: 0,0,2100,"Ftp open(***.***.***:21)"
^SIS: 0,0,98,"PDP: network interface could not start"
AT^SXRAT?
^SXRAT: 0,0
OK
AT+COPS?
+COPS: 0,0,"Orange F",0
OK
at^smoni
^SMONI: 2G,13,-74,208,01,3138,000A,22,22,4,7,E,NOCONN
OK
AT+CREG?
+CREG: 2,1,"3138","0000000A",3
OK
at+cgdcont?
+CGDCONT: 1,"IP","","",0,0
OK
AT^SICS?
^SICS: 0,"conType",""
^SICS: 1,"conType",""
^SICS: 2,"conType",""
^SICS: 3,"conType",""
^SICS: 4,"conType",""
^SICS: 5,"conType",""
OK
AT^SICS=0,conType,GPRS0
OK
AT^SICS=0,apn,"internet"
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^SISO=0
OK
^SIS: 0,0,2100,"Ftp open(***.***.***:21)"
^SIS: 0,0,2100,"220-FileZilla Server 0.9.60 beta Welcome to FTP Server
^SIS: 0,0,2100,"FTP Login OK"
^SIS: 0,0,2100,"append prova_fabio_els61_monaco_4G.csv"
^SIS: 0,0,2100,"213 10"
^SISW: 0,1
AT^SISW=0,10,0,1
^SISW: 0,10,0
0123456789
OK
^SISW: 0,1
AT^SISW=0,0,1
^SISW: 0,0,0
OK
^SIS: 0,0,2100,"226 Successfully transferred \22/prova_fabio_els61_monaco_4G.csv\22"
^SISW: 0,2
AT^SISC=0
Could you check AT+CGCONTRDP output to verify the APN in use?
BTW you don't need to set empty user and password and also invalid DNS address