Public bug reported:

Most often when I first connect my mobile broadband, it works. If it
disconnects (or I disconnect it) and I try to connect again I'm unable
to see web pages or download mail from the Internet.

Even when this has happened the route command and nslookup works:

pat...@ubuntu:~$ route -n 
Kernel IP routing table 
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface 
10.64.64.64     0.0.0.0         255.255.255.255 UH    0      0        0 ppp0 
169.254.0.0     0.0.0.0         255.255.0.0     U     1000   0        0 ppp0 
0.0.0.0         10.64.64.64     0.0.0.0         UG    0      0        0 ppp0 
pat...@ubuntu:~$ nslookup www.dn.se 
Server:         127.0.0.1 
Address:        127.0.0.1#53 

Non-authoritative answer: 
Name:   www.dn.se 
Address: 62.119.189.4 

But still I can't download webpages or e-mail.

In short I get the Name server but not the Internet. The route looks as
it should. When I restart the computer I can connect again.

pat...@ubuntu:~$ lsusb
Bus 001 Device 003: ID 04f2:b071 Chicony Electronics Co., Ltd 2.0M UVC WebCam / 
CNF7129
Bus 001 Device 002: ID 12d1:1001 Huawei Technologies Co., Ltd. E620 USB Modem
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
pat...@ubuntu:~$ lsb_release -rd
Description:    Ubuntu 9.10
Release:        9.10
pat...@ubuntu:~$ apt-cache policy network-manager
network-manager:
  Installed: 0.8~a~git.20091013t193206.679d548-0ubuntu1
  Candidate: 0.8~a~git.20091013t193206.679d548-0ubuntu1
  Version table:
 *** 0.8~a~git.20091013t193206.679d548-0ubuntu1 0
        500 http://archive.ubuntu.com karmic/main Packages
        100 /var/lib/dpkg/status
pat...@ubuntu:~$ 


Here is the debug log when I try to connect again:

pat...@ubuntu:~$ sudo su 
[sudo] password for patrik: 
r...@ubuntu:/home/patrik# /etc/init.d/network-manager stop 
Rather than invoking init scripts through /etc/init.d, use the service(8) 
utility, e.g. service network-manager stop 

Since the script you are attempting to invoke has been converted to an 
Upstart job, you may also use the stop(8) utility, e.g. stop network-manager 
network-manager stop/waiting 
r...@ubuntu:/home/patrik# NM_SERIAL_DEBUG=1 NetworkManager --no-daemon 2>&1 | 
tee /tmp/nm-serial.txt 
NetworkManager: <info>  starting... 
NetworkManager: <info>  modem-manager is now available 
NetworkManager:    SCPlugin-Ifupdown: init! 
NetworkManager:    SCPlugin-Ifupdown: update_system_hostname 
NetworkManager:    SCPluginIfupdown: management mode: unmanaged 
NetworkManager:    SCPlugin-Ifupdown: devices added (path: 
/sys/devices/pci0000:00/0000:00:1c.1/0000:03:00.0/net/eth0, iface: eth0) 
NetworkManager:    SCPlugin-Ifupdown: device added (path: 
/sys/devices/pci0000:00/0000:00:1c.1/0000:03:00.0/net/eth0, iface: eth0): no 
ifupdown configuration found. 
NetworkManager:    SCPlugin-Ifupdown: devices added (path: 
/sys/devices/virtual/net/lo, iface: lo) 
NetworkManager:    SCPlugin-Ifupdown: device added (path: 
/sys/devices/virtual/net/lo, iface: lo): no ifupdown configuration found. 
NetworkManager:    SCPlugin-Ifupdown: end _init. 
NetworkManager: Loaded plugin ifupdown: (C) 2008 Canonical Ltd.  To report bugs 
please use the NetworkManager mailing list. 
NetworkManager: Loaded plugin keyfile: (c) 2007 - 2008 Red Hat, Inc.  To report 
bugs please use the NetworkManager mailing list. 
NetworkManager: <info>  Found radio killswitch rfkill0 (at 
/sys/devices/platform/eeepc/rfkill/rfkill0) (driver eeepc) 
NetworkManager: <info>  Wireless now enabled by radio killswitch 
NetworkManager:    SCPlugin-Ifupdown: (141278496) ... get_connections. 
NetworkManager:    SCPlugin-Ifupdown: (141278496) ... get_connections 
(managed=false): return empty list. 
NetworkManager:    Ifupdown: get unmanaged devices count: 0 
NetworkManager: <info>  (eth0): carrier is OFF 
NetworkManager: <info>  (eth0): new Ethernet device (driver: 'ATL1E') 
NetworkManager: <info>  (eth0): exported as 
/org/freedesktop/NetworkManager/Devices/0 
NetworkManager: <info>  (eth0): now managed 
NetworkManager: <info>  (eth0): device state change: 1 -> 2 (reason 2) 
NetworkManager: <info>  (eth0): bringing up device. 
NetworkManager: <info>  (eth0): preparing device. 
NetworkManager: <info>  (eth0): deactivating device (reason: 2). 
NetworkManager: Added default wired connection 'Auto eth0' for 
/sys/devices/pci0000:00/0000:00:1c.1/0000:03:00.0/net/eth0 
NetworkManager: <info>  (ttyUSB0): new GSM device (driver: 'option1') 
NetworkManager: <info>  (ttyUSB0): exported as 
/org/freedesktop/NetworkManager/Devices/1 
NetworkManager: <info>  (ttyUSB0): now managed 
NetworkManager: <info>  (ttyUSB0): device state change: 1 -> 2 (reason 2) 
NetworkManager: <info>  (ttyUSB0): deactivating device (reason: 2). 
NetworkManager: flush_routes: assertion `iface_idx >= 0' failed 
NetworkManager: flush_addresses: assertion `iface_idx >= 0' failed 
NetworkManager: <WARN>  default_adapter_cb(): bluez error getting default 
adapter: The name org.bluez was not provided by any .service files 
NetworkManager: <info>  (ttyUSB0): device state change: 2 -> 3 (reason 0) 
NetworkManager: Tried to set deprecated property gsm/band 
NetworkManager: <info>  Activation (ttyUSB0) starting connection '3 (Bredband)' 
NetworkManager: <info>  (ttyUSB0): device state change: 3 -> 4 (reason 0) 
NetworkManager: <info>  Activation (ttyUSB0) Stage 1 of 5 (Device Prepare) 
scheduled... 
NetworkManager: <info>  Activation (ttyUSB0) Stage 1 of 5 (Device Prepare) 
started... 
NetworkManager: <info>  Activation (ttyUSB0) Stage 1 of 5 (Device Prepare) 
complete. 
NetworkManager: <info>  Activation (ttyUSB0) Stage 2 of 5 (Device Configure) 
scheduled... 
NetworkManager: <info>  Activation (ttyUSB0) Stage 2 of 5 (Device Configure) 
starting... 
NetworkManager: <info>  (ttyUSB0): device state change: 4 -> 5 (reason 0) 
NetworkManager: <info>  Activation (ttyUSB0) Stage 2 of 5 (Device Configure) 
successful. 
NetworkManager: <info>  Activation (ttyUSB0) Stage 3 of 5 (IP Configure Start) 
scheduled. 
NetworkManager: <info>  Activation (ttyUSB0) Stage 2 of 5 (Device Configure) 
complete. 
NetworkManager: <info>  Activation (ttyUSB0) Stage 3 of 5 (IP Configure Start) 
started... 
NetworkManager: <info>  (ttyUSB0): device state change: 5 -> 7 (reason 0) 
NetworkManager: <info>  Starting pppd connection 
NetworkManager: <debug> [1257699025.433050] nm_ppp_manager_start(): Command 
line: /usr/sbin/pppd nodetach lock nodefaultroute ttyUSB0 noipdefault noauth 
usepeerdns lcp-echo-failure 5 lcp-echo-interval 30 ipparam 
/org/freedesktop/NetworkManager/PPP/0 plugin 
/usr/lib/pppd/2.4.4/nm-pppd-plugin.so 
NetworkManager: <debug> [1257699025.444637] nm_ppp_manager_start(): ppp started 
with pid 3256 
NetworkManager: <info>  Activation (ttyUSB0) Stage 4 of 5 (IP6 Configure Get) 
scheduled... 
NetworkManager: <info>  Activation (ttyUSB0) Stage 3 of 5 (IP Configure Start) 
complete. 
NetworkManager: <info>  Activation (ttyUSB0) Stage 4 of 5 (IP6 Configure Get) 
started... 
NetworkManager: <info>  Activation (ttyUSB0) Stage 4 of 5 (IP6 Configure Get) 
complete. 
Plugin /usr/lib/pppd/2.4.4/nm-pppd-plugin.so loaded. 
** Message: nm-ppp-plugin: (plugin_init): initializing 
** Message: nm-ppp-plugin: (nm_phasechange): status 3 / phase 'serial 
connection' 
Using interface ppp0 
Connect: ppp0 <--> /dev/ttyUSB0 
** Message: nm-ppp-plugin: (nm_phasechange): status 5 / phase 'establish' 
NetworkManager:    SCPlugin-Ifupdown: devices added (path: 
/sys/devices/virtual/net/ppp0, iface: ppp0) 
NetworkManager:    SCPlugin-Ifupdown: device added (path: 
/sys/devices/virtual/net/ppp0, iface: ppp0): no ifupdown configuration found. 
** Message: nm-ppp-plugin: (nm_phasechange): status 6 / phase 'authenticate' 
** Message: nm-ppp-plugin: (get_credentials): passwd-hook, requesting 
credentials... 
** Message: nm-ppp-plugin: (get_credentials): got credentials from 
NetworkManager 
CHAP authentication succeeded 
CHAP authentication succeeded 
** Message: nm-ppp-plugin: (nm_phasechange): status 8 / phase 'network' 
Could not determine remote IP address: defaulting to 10.64.64.64 
Cannot determine ethernet address for proxy ARP 
local  IP address 95.209.130.49 
remote IP address 10.64.64.64 
** Message: nm-ppp-plugin: (nm_phasechange): status 9 / phase 'running' 
** Message: nm-ppp-plugin: (nm_ip_up): ip-up event 
** Message: nm-ppp-plugin: (nm_ip_up): sending Ip4Config to NetworkManager... 
NetworkManager: <info>  PPP manager(IP Config Get) reply received. 
NetworkManager: <info>  Activation (ttyUSB0) Stage 4 of 5 (IP4 Configure Get) 
scheduled... 
NetworkManager: <info>  Activation (ttyUSB0) Stage 4 of 5 (IP4 Configure Get) 
started... 
NetworkManager: <info>  Activation (ttyUSB0) Stage 5 of 5 (IP Configure Commit) 
scheduled... 
NetworkManager: <info>  Activation (ttyUSB0) Stage 4 of 5 (IP4 Configure Get) 
complete. 
NetworkManager: <info>  Activation (ttyUSB0) Stage 5 of 5 (IP Configure Commit) 
started... 
NetworkManager: <info>  (ppp0): removing resolv.conf from /sbin/resolvconf 
resolvconf: Error: /etc/resolv.conf must be a symlink 
NetworkManager: <info>  (ttyUSB0): device state change: 7 -> 8 (reason 0) 
NetworkManager: <info>  (ppp0): removing resolv.conf from /sbin/resolvconf 
resolvconf: Error: /etc/resolv.conf must be a symlink 
NetworkManager: <info>  Policy set '3 (Bredband)' (ppp0) as default for routing 
and DNS. 
NetworkManager: <info>  Activation (ttyUSB0) successful, device activated. 
NetworkManager: <info>  Activation (ttyUSB0) Stage 5 of 5 (IP Configure Commit) 
complete. 
NetworkManager: Tried to set deprecated property gsm/band 
NetworkManager: Tried to set deprecated property gsm/band 
NetworkManager: Tried to set deprecated property gsm/band 
NetworkManager: Tried to set deprecated property gsm/band 
NetworkManager: Tried to set deprecated property gsm/band 
NetworkManager: Tried to set deprecated property gsm/band

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

-- 
mobile broadband does not work when REconnected
https://bugs.launchpad.net/bugs/478530
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