ppp failed with "LCP terminated by peer (peer refused to authenticate)"

Hello All,
  I get ppp failed with "LCP terminated by peer (peer refused to
authenticate)" after PDP active my mobile phone. Here is the log:
Aug 22 13:24:27 bjgailg26 pppd[15372]: pppd options in effect:
Aug 22 13:24:27 bjgailg26 pppd[15372]: debug^I^I# (from command line)
Aug 22 13:24:27 bjgailg26 pppd[15372]: nodetach^I^I# (from command line)
Aug 22 13:24:27 bjgailg26 pppd[15372]: idle 900^I^I# (from
/gailg/bin/pppConnectOptions)
Aug 22 13:24:27 bjgailg26 pppd[15372]: unit 3^I^I# (from command line)
Aug 22 13:24:27 bjgailg26 pppd[15372]: dump^I^I# (from command line)
Aug 22 13:24:27 bjgailg26 pppd[15372]: noauth^I^I# (from
/gailg/bin/pppConnectOptions)
Aug 22 13:24:27 bjgailg26 pppd[15372]: /dev/usb/tts/2^I^I# (from command
line)
Aug 22 13:24:27 bjgailg26 pppd[15372]: nolock^I^I# (from
/gailg/bin/pppConnectOptions)
Aug 22 13:24:27 bjgailg26 pppd[15372]: noaccomp^I^I# (from
/gailg/bin/pppConnectOptions)
Aug 22 13:24:27 bjgailg26 pppd[15372]: nopcomp^I^I# (from
/gailg/bin/pppConnectOptions)
Aug 22 13:24:27 bjgailg26 pppd[15372]: passive^I^I# (from
/gailg/bin/pppConnectOptions)
Aug 22 13:24:27 bjgailg26 pppd[15372]: lcp-max-configure 30^I^I# (from
/gailg/bin/pppConnectOptions)
Aug 22 13:24:27 bjgailg26 pppd[15372]: novj^I^I# (from
/gailg/bin/pppConnectOptions)
Aug 22 13:24:27 bjgailg26 pppd[15372]: noipdefault^I^I# (from
/gailg/bin/pppConnectOptions)
Aug 22 13:24:27 bjgailg26 pppd[15372]: nodefaultroute^I^I# (from
/gailg/bin/pppConnectOptions)
Aug 22 13:24:27 bjgailg26 pppd[15372]: noccp^I^I# (from
/gailg/bin/pppConnectOptions)
Aug 22 13:24:27 bjgailg26 pppd[15372]: nobsdcomp^I^I# (from
/gailg/bin/pppConnectOptions)
Aug 22 13:24:27 bjgailg26 pppd[15372]: nodeflate^I^I# (from
/gailg/bin/pppConnectOptions)
Aug 22 13:24:27 bjgailg26 pppd[15372]: pppd 2.4.1 started by root, uid 0
Aug 22 13:24:27 bjgailg26 pppd[15372]: using channel 228
Aug 22 13:24:27 bjgailg26 pppd[15372]: Using interface ppp3
Aug 22 13:24:27 bjgailg26 pppd[15372]: Connect: ppp3 <--> /dev/usb/tts/2
Aug 22 13:24:27 bjgailg26 pppd[15372]: sent [LCP ConfReq id=0x1
<asyncmap 0x0> <magic 0x25cac9d3>]
Aug 22 13:24:27 bjgailg26 pppd[15372]: rcvd [LCP ConfReq id=0x1
<asyncmap 0x0> <auth pap> <magic 0x86a69dcc> <pcomp> 
<accomp>]
Aug 22 13:24:27 bjgailg26 pppd[15372]: sent [LCP ConfRej id=0x1 <auth
pap> <pcomp> <accomp>]
Aug 22 13:24:27 bjgailg26 pppd[15372]: rcvd [LCP ConfAck id=0x1
<asyncmap 0x0> <magic 0x25cac9d3>]
Aug 22 13:24:27 bjgailg26 pppd[15372]: rcvd [LCP ConfReq id=0x2
<asyncmap 0x0> <magic 0x86a69dcc>]
Aug 22 13:24:27 bjgailg26 pppd[15372]: sent [LCP ConfAck id=0x2
<asyncmap 0x0> <magic 0x86a69dcc>]
Aug 22 13:24:27 bjgailg26 pppd[15372]: sent [IPCP ConfReq id=0x1 <addr
0.0.0.0>]
Aug 22 13:24:27 bjgailg26 pppd[15372]: rcvd [LCP TermReq id=0x3 "peer
refused to authenticate"]
Aug 22 13:24:27 bjgailg26 pppd[15372]: LCP terminated by peer (peer
refused to authenticate)
Aug 22 13:24:27 bjgailg26 pppd[15372]: sent [LCP TermAck id=0x3]
Aug 22 13:24:30 bjgailg26 pppd[15372]: Connection terminated.
Aug 22 13:24:32 bjgailg26 pppd[15372]: Exit.
Can you please help me?
Thanks.
 
BRs,
Huang Xiaomei

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