Não consigo acessar a internet usando meu modem USB no meu laptop. Enquanto eu posso acessar a internet do meu PC. Ambos estão executando o Ubuntu 12.04.
O que posso fazer para detectar o problema?
Aqui o resultado de lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 004: ID 0c45:6461 Microdia
Bus 002 Device 003: ID 19d2:0033 ZTE WCDMA Technologies MSM
Bus 002 Device 004: ID 0a5c:4500 Broadcom Corp. BCM2046B1 USB 2.0 Hub (part of BCM246
Bluetooth) Barramento 002 Dispositivo 005: ID 413c: 8161 Dell Computer Corp. Teclado Integrado Barramento 002 Dispositivo 006: ID 413c: 8162 Dell Computer Corp. Touchpad Integrado [Synaptics] Barramento 002 Dispositivo 007: ID 413c: 8160 Dell Computer Corp. Sem Fio 365 Bluetooth
E aqui o resultado da rede sudo lshw -class
PCI (sysfs)
*-network
description: Wireless interface
product: BCM4313 802.11b/g/n Wireless LAN Controller
vendor: Broadcom Corporation
physical id: 0
bus info: pci@0000:12:00.0
logical name: wlan0
version: 01
serial: 70:f1:a0:a0:00:00
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=brcmsmac driverversion=3.2.0-37-generic firmware=N/A ip=172.16.4.55 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn
resources: irq:17 memory:fbc00000-fbc03fff
*-network
description: Ethernet interface
product: RTL8101E/RTL8102E PCI Express Fast Ethernet controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:13:00.0
logical name: eth0
version: 02
serial: a4:ba:d0:c0:f0:f0
size: 10Mbit/s
capacity: 100Mbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix vpd bus_master cap_list rom ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=N/A latency=0 link=no multicast=yes port=MII speed=10Mbit/s
resources: irq:45 ioport:e000(size=256) memory:d0b10000-d0b10fff memory:d0b00000-d0b0ffff memory:fb200000-fb21ffff
O resultado de tailf /var/log/syslog após conectar o modem em
Feb 8 13:32:14 Inspiron-N5010 NetworkManager[911]: <info> Activation (ttyUSB3) starting connection 'MobiNil Default 1'
Feb 8 13:32:14 Inspiron-N5010 NetworkManager[911]: <info> (ttyUSB3): device state change: disconnected -> prepare (reason 'none') [30 40 0]
Feb 8 13:32:14 Inspiron-N5010 NetworkManager[911]: <info> Activation (ttyUSB3) Stage 1 of 5 (Device Prepare) scheduled...
Feb 8 13:32:14 Inspiron-N5010 NetworkManager[911]: <info> Activation (ttyUSB3) Stage 1 of 5 (Device Prepare) started...
Feb 8 13:32:14 Inspiron-N5010 NetworkManager[911]: <info> Activation (ttyUSB3) Stage 1 of 5 (Device Prepare) complete.
Feb 8 13:32:14 Inspiron-N5010 modem-manager[885]: <info> Modem /org/freedesktop/ModemManager/Modems/0: state changed (registered -> connecting)
Feb 8 13:32:14 Inspiron-N5010 modem-manager[885]: <info> Modem /org/freedesktop/ModemManager/Modems/0: state changed (connecting -> registered)
Feb 8 13:32:14 Inspiron-N5010 NetworkManager[911]: <warn> GSM connection failed: (32) No cause information available
Feb 8 13:32:14 Inspiron-N5010 NetworkManager[911]: <info> (ttyUSB3): device state change: prepare -> failed (reason 'unknown') [40 120 1]
Feb 8 13:32:14 Inspiron-N5010 NetworkManager[911]: <warn> Activation (ttyUSB3) failed.
Feb 8 13:32:14 Inspiron-N5010 NetworkManager[911]: <info> (ttyUSB3): device state change: failed -> disconnected (reason 'none') [120 30 0]
Feb 8 13:32:14 Inspiron-N5010 NetworkManager[911]: <info> (ttyUSB3): deactivating device (reason 'none') [0]
Feb 8 13:32:14 Inspiron-N5010 NetworkManager[911]: nm_system_iface_flush_routes: assertion 'ifindex > 0' failed
Feb 8 13:32:14 Inspiron-N5010 NetworkManager[911]: nm_system_iface_flush_addresses: assertion 'ifindex > 0' failed
Os modems ZTE 3G, por vezes, vêm como "mídia dupla", eles agem como um CD ligado.
Aqui está o que funciona para mim: (melhor abrir duas janelas de terminal)
Em um terminal, digite tailf /var/log/syslog para ver o que acontece.
no outro tipo eject sr1 (que deve desabilitar o modo CD e fazer o sistema reconhecê-lo como modem).
Depois de algum tempo (vejo quando a atividade no syslog fica lenta novamente), consigo usar o network-manager para se conectar ao meu provedor 3G.