Hello zerocool .
Here is your solution to this issue:Please first connect your network card to the wireless router using an ethernet cable (also known as a LAN cable).
In order to gather essential troubleshooting information about your wireless card, please follow this procedure:
Step 1: Open Terminal from "Applications->Accessories->Terminal"
Step 2: Run the following command (copy-paste the line below into a Terminal, press enter, then enter password when sudo asks for password, then press enter again)
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sudo lshw -C network; sudo iwlist scanning; cat /etc/network/interfaces; cat /etc/lsb-release; lspci -nn; lsusb; uname -a; dmesg | grep ound; dmesg | grep b43; iwconfig
Step 3: Please post results (copy/paste terminal output) on this thread
Keep in mind that one or more of the following 5 basic components need to be configured correctly so that wireless can work correctly in Linux:
Wireless configuration in the BIOS, hardware wireless switch setting, active wireless driver version, the firmware for the wireless chipset (stored as a file in Linux), and the configuration of the wireless parameters in wicd or NetworkManager (SSID broadcast settings, encryption settings, name of wireless interface stored in wicd, the chosen channel for wireless transmission, ...) .
In case your wireless interface is DISABLED, please make sure the /etc/network/interfaces file only contains the following 4 lines (you can edit the file using the command
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gksudo gedit /etc/network/interfaces
auto lo
iface lo inet loopback
auto <name of wireless interface>
iface <name of wireless interface> inet dhcp
where you need to replace <name of wireless interface> with a real value inside this file: wlan0 or ath0 or eth1 or something like that. You can find the right value by running the command iwconfig
Here is an example of a real, working /etc/network/interfaces file:
auto lo
iface lo inet loopback
auto wlan0
iface wlan0 inet dhcp
Thank you
Amir.