BG95 PPP negotiation terminated by modem

I’m trying to establish a data session on the BG95 modem, and I successfully establish the data channel via. ATD*99#.

During the PPP negoation though, the peer (modem) appears to terminate the link…I’m not sure why?

I see the following in the pppd log:

using channel 0
Using interface ppp0
Connect: ppp0 <–> /dev/qcser3
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x9b0d490c>]
rcvd [LCP ConfReq id=0xc <asyncmap 0x0> <magic 0xd6e9bffb> ]
No auth is possible
sent [LCP ConfRej id=0xc ]
rcvd [LCP ConfAck id=0x1 <asyncmap 0x0> <magic 0x9b0d490c>]
rcvd [LCP ConfReq id=0xd <asyncmap 0x0> <magic 0xd6e9bffb>]
sent [LCP ConfAck id=0xd <asyncmap 0x0> <magic 0xd6e9bffb>]
sent [LCP EchoReq id=0x0 magic=0x9b0d490c]
sent [IPCP ConfReq id=0x1 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns3 0.0.0.0>]
rcvd [LCP DiscReq id=0xe magic=0xd6e9bffb]
rcvd [LCP EchoRep id=0x0 magic=0xd6e9bffb 9b 0d 49 0c]
rcvd [LCP TermReq id=0xf]
LCP terminated by peer
sent [LCP TermAck id=0xf]
Hangup (SIGHUP)
Modem hangup
auth.c: Connection terminated.

Any ideas on why the modem would terminate the PPP negotiation so abruptly?

Hi,

Have you configured APN before PPP? both in modem device and module.

B R
Linkin WANG