RAK7243 with LTE - "timeout sending Config-Requests"

Hi!
I can’t get my RAK7243 Pilot Gateway Pro to work with LTE. The sim card works fine in my iPhone but I cannot seem to connect to the internet properly as I get error “timeout sending Config-Requests” during the command sudo pppd call gprs.

  • Both LTE antennas are screwed in.
  • I use the latest firmware image provided by RAK.
  • SIM card works and is activated
  • Connection between LTE module and RPI works as it finds the network 4g.tele2.se as well as other providers.

See the log output below:

pppd options in effect:
debug		# (from /etc/ppp/peers/gprs)
nodetach		# (from /etc/ppp/peers/gprs)
dump		# (from /etc/ppp/peers/gprs)
noauth		# (from /etc/ppp/peers/gprs)
remotename 3gppp		# (from /etc/ppp/peers/gprs)
/dev/ttyAMA0		# (from /etc/ppp/peers/gprs)
115200		# (from /etc/ppp/peers/gprs)
lock		# (from /etc/ppp/peers/gprs)
connect chat -s -v -f /etc/chatscripts/quectel-chat-connect -T 4g.tele2.se		# (from /etc/ppp/peers/gprs)
disconnect chat -s -v -f /etc/chatscripts/quectel-chat-disconnect		# (from /etc/ppp/peers/gprs)
nocrtscts		# (from /etc/ppp/peers/gprs)
modem		# (from /etc/ppp/peers/gprs)
asyncmap 0		# (from /etc/ppp/options)
lcp-echo-failure 4		# (from /etc/ppp/options)
lcp-echo-interval 30		# (from /etc/ppp/options)
hide-password		# (from /etc/ppp/peers/gprs)
novj		# (from /etc/ppp/peers/gprs)
novjccomp		# (from /etc/ppp/peers/gprs)
ipcp-accept-local		# (from /etc/ppp/peers/gprs)
ipcp-accept-remote		# (from /etc/ppp/peers/gprs)
ipparam 3gppp		# (from /etc/ppp/peers/gprs)
noipdefault		# (from /etc/ppp/peers/gprs)
ipcp-max-failure 30		# (from /etc/ppp/peers/gprs)
defaultroute		# (from /etc/ppp/peers/gprs)
usepeerdns		# (from /etc/ppp/peers/gprs)
noccp		# (from /etc/ppp/peers/gprs)
noipx		# (from /etc/ppp/options)
abort on (BUSY)
abort on (NO CARRIER)
abort on (NO DIALTONE)
abort on (ERROR)
abort on (NO ANSWER)
timeout set to 30 seconds
send (AT^M)
expect (OK)
^M
OK
 -- got it

send (ATE0^M)
expect (OK)
^M
^M
OK
 -- got it

send (ATI;+CSUB;+CSQ;+COPS?;+CGREG?;&D2^M)
expect (OK)
^M
^M
Quectel^M
EG95^M
Revision: EG95EFBR06A05M4G^M
^M
SubEdition: V01^M
^M
+CSQ: 17,99^M
^M
+COPS: 0^M
^M
+CGREG: 0,2^M
^M
OK
 -- got it

send (AT+CGDCONT=1,"IP","4g.tele2.se",,0,0^M)
expect (OK)
^M
^M
OK
 -- got it

send (ATD*99#^M)
expect (CONNECT)
^M
^M
CONNECT
 -- got it

Script chat -s -v -f /etc/chatscripts/quectel-chat-connect -T 4g.tele2.se finished (pid 849), status = 0x0
Serial connection established.
using channel 2
Using interface ppp0
Connect: ppp0 <--> /dev/ttyAMA0
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x4ac63a7c> <pcomp> <accomp>]
rcvd [LCP ConfReq id=0x3 <asyncmap 0x0> <auth chap MD5> <magic 0xd112ea18> <pcomp> <accomp>]
No auth is possible
sent [LCP ConfRej id=0x3 <auth chap MD5>]
rcvd [LCP ConfAck id=0x1 <asyncmap 0x0> <magic 0x4ac63a7c> <pcomp> <accomp>]
rcvd [LCP ConfReq id=0x4 <asyncmap 0x0> <magic 0xd112ea18> <pcomp> <accomp>]
sent [LCP ConfAck id=0x4 <asyncmap 0x0> <magic 0xd112ea18> <pcomp> <accomp>]
sent [LCP EchoReq id=0x0 magic=0x4ac63a7c]
sent [IPCP ConfReq id=0x1 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]
rcvd [LCP DiscReq id=0x5 magic=0xd112ea18]
rcvd [LCP EchoRep id=0x0 magic=0xd112ea18 4a c6 3a 7c]
sent [IPCP ConfReq id=0x1 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]
sent [IPCP ConfReq id=0x1 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]
sent [IPCP ConfReq id=0x1 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]
sent [IPCP ConfReq id=0x1 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]
sent [IPCP ConfReq id=0x1 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]
sent [IPCP ConfReq id=0x1 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]
sent [IPCP ConfReq id=0x1 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]
sent [IPCP ConfReq id=0x1 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]
sent [IPCP ConfReq id=0x1 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]
sent [LCP EchoReq id=0x1 magic=0x4ac63a7c]
IPCP: timeout sending Config-Requests
sent [LCP TermReq id=0x2 "No network protocols running"]
sent [LCP TermReq id=0x3 "No network protocols running"]
Connection terminated.
abort on (ERROR)
abort on (NO DIALTONE)
unterminated quote (line 4)
Script chat -s -v -f /etc/chatscripts/quectel-chat-disconnect finished (pid 868), status = 0x1
disconnect script failed
Modem hangup

What could be wrong?

Thanks in advance!

Have you followed the steps below?

Or this document for RAK7243 with LTE:
http://docs.rakwireless.com/en/LoRa/Pilot-Gateway-Pro-RAK7243/Application-Notes/Get_Start_with_RAK7243_with_LTE_LoRa_Gateway.pdf

Yes of course! Tried several times.

2019-06-05%2018-23-52%E5%B1%8F%E5%B9%95%E6%88%AA%E5%9B%BE

Through this print message, I think you choose the wrong sim card operator.

enter minicom,can you show me the print of “at+cops=?”?

This is the output from at+cops=?

+COPS: (1,"3 SE","3 SE","24002",7),(1,"Tele2","Tele2 SE","24007",7),(1,"Telenor SE","TelenorS","24008",2),(1,"TELIA S","TELIA","24001",2),(1,"Sweden Mobile","MobileS","24024",0),(1,"Tele2","Tele2 SE","24007",2),(1,"Telenor SE","TelenorS","24008",7),(1,"3 SE","3 SE","240)

I have a “Tele2” SIM card, I tried both 1,0,“Tele2”,2 and 1,0,“Tele2”,7 without luck.

Is the command “at+cops=1,0,“Tele2”,2” or “at+cops=1,0,“Tele2”,7” successful?

No i tried that too without success…

So you must first determine that the sim card operator has not chosen the wrong.