I am having problems trying to connect to the internet using the quectel BG95 module.
The modem seems to work fine in terms of being able to communicate with the OS, I tried some AT commands and it seems to work fine
at+cops?
+COPS: 0,0,"AR PERSONAL",8
OK
ati
Quectel
BG95-M3
Revision: BG95M3LAR02A03
OK
But when I try to use pppd to run a ppp connection over it I get the message Couldn’t set tty to PPP discipline: Invalid argument right after the serial connection is established.
Here’s the log:
Mar 9 21:58:13 pre-bnd-s71-sh1 local2.info chat[741]: abort on (BUSY)
Mar 9 21:58:13 pre-bnd-s71-sh1 local2.info chat[741]: abort on (NO CARRIER)
Mar 9 21:58:13 pre-bnd-s71-sh1 local2.info chat[741]: abort on (NO DIALTONE)
Mar 9 21:58:13 pre-bnd-s71-sh1 local2.info chat[741]: abort on (ERROR)
Mar 9 21:58:13 pre-bnd-s71-sh1 local2.info chat[741]: abort on (NO ANSWER)
Mar 9 21:58:13 pre-bnd-s71-sh1 local2.info chat[741]: timeout set to 30 seconds
Mar 9 21:58:13 pre-bnd-s71-sh1 local2.info chat[741]: send (AT^M)
Mar 9 21:58:13 pre-bnd-s71-sh1 local2.info chat[741]: expect (OK)
Mar 9 21:58:13 pre-bnd-s71-sh1 local2.info chat[741]: ^M
Mar 9 21:58:13 pre-bnd-s71-sh1 local2.info chat[741]: OK
Mar 9 21:58:13 pre-bnd-s71-sh1 local2.info chat[741]: -- got it
Mar 9 21:58:13 pre-bnd-s71-sh1 local2.info chat[741]: send (ATE0^M)
Mar 9 21:58:13 pre-bnd-s71-sh1 local2.info chat[741]: expect (OK)
Mar 9 21:58:13 pre-bnd-s71-sh1 local2.info chat[741]: ^M
Mar 9 21:58:13 pre-bnd-s71-sh1 local2.info chat[741]: ^M
Mar 9 21:58:13 pre-bnd-s71-sh1 local2.info chat[741]: OK
Mar 9 21:58:13 pre-bnd-s71-sh1 local2.info chat[741]: -- got it
Mar 9 21:58:13 pre-bnd-s71-sh1 local2.info chat[741]: send (ATI;+CSUB;+CSQ;+CPIN?;+COPS?;+CGREG?;&D2^M)
Mar 9 21:58:14 pre-bnd-s71-sh1 local2.info chat[741]: expect (+COPS: 0,0)
Mar 9 21:58:14 pre-bnd-s71-sh1 local2.info chat[741]: ^M
Mar 9 21:58:14 pre-bnd-s71-sh1 local2.info chat[741]: ^M
Mar 9 21:58:14 pre-bnd-s71-sh1 local2.info chat[741]: Quectel^M
Mar 9 21:58:14 pre-bnd-s71-sh1 local2.info chat[741]: BG95-M3^M
Mar 9 21:58:14 pre-bnd-s71-sh1 local2.info chat[741]: Revision: BG95M3LAR02A03^M
Mar 9 21:58:14 pre-bnd-s71-sh1 local2.info chat[741]: ^M
Mar 9 21:58:14 pre-bnd-s71-sh1 local2.info chat[741]: SubEdition: V05^M
Mar 9 21:58:14 pre-bnd-s71-sh1 local2.info chat[741]: ^M
Mar 9 21:58:14 pre-bnd-s71-sh1 local2.info chat[741]: +CSQ: 30,99^M
Mar 9 21:58:14 pre-bnd-s71-sh1 local2.info chat[741]: ^M
Mar 9 21:58:14 pre-bnd-s71-sh1 local2.info chat[741]: +CPIN: READY^M
Mar 9 21:58:14 pre-bnd-s71-sh1 local2.info chat[741]: ^M
Mar 9 21:58:14 pre-bnd-s71-sh1 local2.info chat[741]: +COPS: 0,0
Mar 9 21:58:14 pre-bnd-s71-sh1 local2.info chat[741]: -- got it
Mar 9 21:58:14 pre-bnd-s71-sh1 local2.info chat[741]: send (AT+CGDCONT=1,"IP","super",,0,0^M)
Mar 9 21:58:14 pre-bnd-s71-sh1 local2.info chat[741]: expect (OK)
Mar 9 21:58:14 pre-bnd-s71-sh1 local2.info chat[741]: ,"AR PERSONAL",8^M
Mar 9 21:58:14 pre-bnd-s71-sh1 local2.info chat[741]: ^M
Mar 9 21:58:14 pre-bnd-s71-sh1 local2.info chat[741]: +CGREG: 0,4^M
Mar 9 21:58:14 pre-bnd-s71-sh1 local2.info chat[741]: ^M
Mar 9 21:58:14 pre-bnd-s71-sh1 local2.info chat[741]: OK
Mar 9 21:58:14 pre-bnd-s71-sh1 local2.info chat[741]: -- got it
Mar 9 21:58:14 pre-bnd-s71-sh1 local2.info chat[741]: send (ATD*99#^M)
Mar 9 21:58:14 pre-bnd-s71-sh1 local2.info chat[741]: expect (CONNECT)
Mar 9 21:58:14 pre-bnd-s71-sh1 local2.info chat[741]: ^M
Mar 9 21:58:14 pre-bnd-s71-sh1 local2.info chat[741]: ^M
Mar 9 21:58:14 pre-bnd-s71-sh1 local2.info chat[741]: OK^M
Mar 9 21:58:14 pre-bnd-s71-sh1 local2.info chat[741]: ^M
Mar 9 21:58:14 pre-bnd-s71-sh1 local2.info chat[741]: CONNECT
Mar 9 21:58:14 pre-bnd-s71-sh1 local2.info chat[741]: -- got it
Mar 9 21:58:14 pre-bnd-s71-sh1 daemon.debug pppd[723]: Script chat -s -v -f /etc/ppp/peers/quectel-chat-connect finished (pid 741), status = 0x0
Mar 9 21:58:14 pre-bnd-s71-sh1 daemon.info pppd[723]: Serial connection established.
Mar 9 21:58:14 pre-bnd-s71-sh1 daemon.err pppd[723]: Couldn't set tty to PPP discipline: Invalid argument
Mar 9 21:58:14 pre-bnd-s71-sh1 local2.info chat[743]: abort on (ERROR)
Mar 9 21:58:14 pre-bnd-s71-sh1 local2.info chat[743]: abort on (NO DIALTONE)
Mar 9 21:58:14 pre-bnd-s71-sh1 local2.info chat[743]: send (+++^M)
Mar 9 21:58:14 pre-bnd-s71-sh1 local2.info chat[743]: send (+++^M)
Mar 9 21:58:14 pre-bnd-s71-sh1 local2.info chat[743]: send (+++^M)
Mar 9 21:58:14 pre-bnd-s71-sh1 daemon.debug pppd[723]: Script chat -s -v -f /etc/ppp/peers/quectel-chat-disconnect finished (pid 743), status = 0x0
Mar 9 21:58:14 pre-bnd-s71-sh1 daemon.info pppd[723]: Serial link disconnected.
I am lost here and could use some advice. Any ideas?
Thanks in advance