Public bug reported:

Binary package hint: network-manager

Description:    Ubuntu 8.04.1
Release:        8.04

network-manager:
  Installed: 0.6.6-0ubuntu5
  Candidate: 0.6.6-0ubuntu5
  Version table:
 *** 0.6.6-0ubuntu5 0
        500 http://za.archive.ubuntu.com hardy/main Packages
        100 /var/lib/dpkg/status

I can configure a GPRS connection with NetworkManager to connect to the
Cellphone provider, using the front-end.  However, as soon as
NetworkManager is connected, it disconnects immediately.

It starts pppd, which starts chat, which connects.
pppd then successfully authenticates to the service provider.
pppd then starts LCP configure requests to get the IP/DNS, etc.
And then networkmanager kills it...
And then pppd (on this side) sends an LCP TermReq.

NetworkManager shouldn't kill working connections.

In /var/log/syslog:

Jun 21 08:57:59 ... NetworkManager: <info>  Deactivating device eth0. 
Jun 21 08:57:59 ... NetworkManager: <info>  Device list recreated successfully. 
Jun 21 08:57:59 ... chat[31325]: expect (OK)
Jun 21 08:57:59 ... chat[31325]: ^M
Jun 21 08:57:59 ... chat[31325]: AT+CGDCONT=1,"IP","internet"^M^M
Jun 21 08:57:59 ... chat[31325]: OK
Jun 21 08:57:59 ... chat[31325]:  -- got it 
Jun 21 08:57:59 ... chat[31325]: send (ATDT*99***1#^M)
Jun 21 08:57:59 ... pppd[31185]: Serial connection established.
Jun 21 08:57:59 ... pppd[31185]: using channel 12
Jun 21 08:57:59 ... pppd[31185]: Using interface ppp0
Jun 21 08:57:59 ... pppd[31185]: Connect: ppp0 <--> /dev/ttyUSB0
Jun 21 08:58:00 ... pppd[31185]: Warning - secret file /etc/ppp/pap-secrets has 
world and/or group access
Jun 21 08:58:00 ... pppd[31185]: sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 
0x72689983>]
Jun 21 08:58:00 ... pppd[31185]: rcvd [LCP ConfReq id=0xe <asyncmap 0x0> <auth 
chap MD5> <magic 0xdd1b0337> <pcomp> <accomp>]
Jun 21 08:58:00 ... pppd[31185]: sent [LCP ConfRej id=0xe <pcomp> <accomp>]
Jun 21 08:58:00 ... pppd[31185]: rcvd [LCP ConfAck id=0x1 <asyncmap 0x0> <magic 
0x72689983>]
Jun 21 08:58:00 ... pppd[31185]: rcvd [LCP ConfReq id=0xf <asyncmap 0x0> <auth 
chap MD5> <magic 0xdd1b0337>]
Jun 21 08:58:00 ... pppd[31185]: sent [LCP ConfAck id=0xf <asyncmap 0x0> <auth 
chap MD5> <magic 0xdd1b0337>]
Jun 21 08:58:00 ... pppd[31185]: sent [LCP EchoReq id=0x0 magic=0x72689983]
Jun 21 08:58:00 ... pppd[31185]: rcvd [LCP DiscReq id=0x10 magic=0xdd1b0337]
Jun 21 08:58:00 ... pppd[31185]: rcvd [CHAP Challenge id=0x1 
<6659638b087f82277afa61e8c6d68378>, name = "UMTS_CHAP_SRVR"]
Jun 21 08:58:00 ... pppd[31185]: Warning - secret file /etc/ppp/chap-secrets 
has world and/or group access
Jun 21 08:58:00 ... pppd[31185]: sent [CHAP Response id=0x1 
<c2364937f2283f82f0138b13e4574eaa>, name = "a"]
Jun 21 08:58:00 ... pppd[31185]: rcvd [LCP EchoRep id=0x0 magic=0xdd1b0337 72 
68 99 83]
Jun 21 08:58:00 ... pppd[31185]: rcvd [CHAP Success id=0x1 ""]
Jun 21 08:58:00 ... pppd[31185]: CHAP authentication succeeded
Jun 21 08:58:00 ... pppd[31185]: CHAP authentication succeeded
Jun 21 08:58:00 ... pppd[31185]: sent [IPCP ConfReq id=0x1 <addr 0.0.0.0>]
Jun 21 08:58:01 ... NetworkManager: <info>  Going to sleep. 
Jun 21 08:58:01 ... pppd[31185]: Terminating on signal 15
Jun 21 08:58:01 ... pppd[31185]: sent [LCP TermReq id=0x2 "User request"]
Jun 21 08:58:01 ... pppd[31185]: rcvd [LCP TermAck id=0x2]
Jun 21 08:58:01 ... pppd[31185]: Connection terminated.
Jun 21 08:58:01 ... NetworkManager: <info>  Waking up from sleep.

** Affects: network-manager (Ubuntu)
     Importance: Undecided
         Status: New

-- 
NetworkManager 3g/gprs connects and immediately disconnects
https://bugs.launchpad.net/bugs/241851
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