Wireless Realtek 8187b [Resolvido]

[Andrey]

Olá Pessoal!

Tenho o Ubuntu 10.10 instalado em dual boot no meu notebook. A placa é Realtek 8187b. Com o win 7 consigo boa conexão via wireless, mas com o Ubuntu apenas quando estou próximo do roteador. Como sou iniciante, não sei como proceder. Alguém pode ajudar?

Seguem algumas informações que talvez possam ajudar, tendo em vista outros tópicos que li:

andrey@Andrey-IS-1412:~$ sudo lshw -C network
 *-network              
      description: Ethernet interface
      product: RTL8111/8168B PCI Express Gigabit Ethernet controller
      vendor: Realtek Semiconductor Co., Ltd.
      physical id: 0
      bus info: pci@0000:08:00.0
      logical name: eth0
      version: 03
      serial: 00:03:0d:e7:64:d1
      size: 10MB/s
      capacity: 1GB/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 1000bt 1000bt-fd autonegotiation
      configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half latency=0 link=no multicast=yes port=MII speed=10MB/s
      resources: irq:44 ioport:5000(size=256) memory:c6000000-c6000fff memory:c8000000-c8003fff memory:c6020000-c603ffff
 *-network
      description: Wireless interface
      physical id: 3
      bus info: usb@2:2
      logical name: wlan0
      serial: 00:17:c4:cb:95:0b
      capabilities: ethernet physical wireless
      configuration: broadcast=yes driver=rtl8187 driverversion=2.6.35-22-generic firmware=N/A ip=192.168.0.2 link=yes multicast=yes wireless=IEEE 802.11bg
andrey@Andrey-IS-1412:~$ nm-tool

NetworkManager Tool

State: connected

- Device: eth0 -----------------------------------------------------------------
 Type:              Wired
 Driver:            r8169
 State:             unavailable
 Default:           no
 HW Address:        00:03:0D:E7:64:D1

 Capabilities:
   Carrier Detect:  yes
   Speed:           10 Mb/s

 Wired Properties
   Carrier:         off


- Device: wlan0  [Auto Andrey ] ------------------------------------------------
 Type:              802.11 WiFi
 Driver:            rtl8187
 State:             connected
 Default:           yes
 HW Address:        00:17:C4:CB:95:0B

 Capabilities:
   Speed:           1 Mb/s

 Wireless Properties
   WEP Encryption:  yes
   WPA Encryption:  yes
   WPA2 Encryption: yes

 Wireless Access Points (* = current AP)
   *Andrey :        Infra, 00:1F:33:80:91:AE, Freq 2462 MHz, Rate 54 Mb/s, Strength 100 WPA2
   CWBT0b:          Infra, 00:02:6F:50:95:40, Freq 2437 MHz, Rate 11 Mb/s, Strength 62

 IPv4 Settings:
   Address:         192.168.0.2
   Prefix:          24 (255.255.255.0)
   Gateway:         192.168.0.1

   DNS:             192.168.0.1


andrey@Andrey-IS-1412:~$ iwconfig wlan0
wlan0     IEEE 802.11bg  ESSID:"Andrey "  
         Mode:Managed  Frequency:2.462 GHz  Access Point: 00:1F:33:80:91:AE  
         Bit Rate=18 Mb/s   Tx-Power=20 dBm  
         Retry  long limit:7   RTS thr:off   Fragment thr:off
         Power Management:off
         Link Quality=70/70  Signal level=-40 dBm  
         Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
         Tx excessive retries:0  Invalid misc:0   Missed beacon:0


Obrigado!

[Andreson Goveia]

Cara da uma pesquisada no forum por Realtek 8187b, já tem muitos tópicos com as devidas respostas de como resolver este problema.

[Andrey]

Consegui solucionar o problema.

Segui os passos presentes aqui: http://www.vivaolinux.com.br/topico/Iniciantes-no-Linux/Realtec-RTL-8187B-no-Ubuntu-9.04/