Execute o comando nm-tool e cole o resultado, lembra?
Testou em outro sistema operacional? Testou com outro roteador?
Resultado:
NetworkManager Tool
State: connected (global)
- Device: wlan0 [NKTX3] -------------------------------------------------------
Type: 802.11 WiFi
Driver: iwlwifi
State: connected
Default: no
HW Address: FC:F8:AE:21:E3:00
Capabilities:
Speed: 108 Mb/s
Wireless Properties
WEP Encryption: yes
WPA Encryption: yes
WPA2 Encryption: yes
Wireless Access Points (* = current AP)
*NKTX3: Infra, 00:24:01:C8:69:26, Freq 2462 MHz, Rate 54 Mb/s, Strength 78 WPA2
IPv4 Settings:
Address: 192.168.0.102
Prefix: 24 (255.255.255.0)
Gateway: 192.168.0.1
DNS: 192.168.0.1
- Device: eth0 [Conexão cabeada 1] -------------------------------------------
Type: Wired
Driver: r8169
State: connected
Default: yes
HW Address: A4:1F:72:FD:A1:F4
Capabilities:
Carrier Detect: yes
Speed: 100 Mb/s
Wired Properties
Carrier: on
IPv4 Settings:
Address: 192.168.0.103
Prefix: 24 (255.255.255.0)
Gateway: 192.168.0.1
DNS: 192.168.0.1
Com o Windows 8 funciona de boa a rede. Não tenho outro roteador no momento para testas.
Valeu!