Thank you for your replies.
i also read that i need to disable my wireless network card. And not able to do that. The wireless card driver is not /etc/network/interfaces files, below is what is happening with the OS Log and this keeps repeating. The don't see any disable button in network graphics tool. How do i disable my wireless network card?
Jul 8 08:12:46 human kernel: [ 541.956539] input: b43-phy0 as /devices/virtual/input/input36
Jul 8 08:12:46 human kernel: [ 541.964710] evdev: no more free evdev devices
Jul 8 08:12:46 human kernel: [ 541.964722] input: failed to attach handler evdev to device input36, error: -23
Jul 8 08:12:46 human kernel: [ 541.998297] b43-phy0 ERROR: Firmware file "b43/ucode5.fw" not found or load failed.
Jul 8 08:12:46 human kernel: [ 541.998307] b43-phy0 ERROR: You must go to
http://linuxwireless.org/en/users/Dr...devicefirmware and download the correct firmware (version 4).
Jul 8 08:12:46 human firmware_helper[6498]: main: error loading '/lib/firmware/b43/ucode5.fw' for device '/devices/pci0000:00/0000:00:1e.0/0000:06:05.0/ssb0:0/firmware/ssb0:0' with driver '(unknown)'
Jul 8 08:12:48 human NetworkManager: <WARN> nm_device_802_11_wireless_scan(): (wlan0): could not trigger wireless scan: Network is down
Jul 8 08:12:49 human kernel: [ 544.963648] input: b43-phy0 as /devices/virtual/input/input37
Jul 8 08:12:49 human kernel: [ 544.974094] evdev: no more free evdev devices
Jul 8 08:12:49 human kernel: [ 544.974105] input: failed to attach handler evdev to device input37, error: -23
Jul 8 08:12:49 human firmware_helper[6506]: main: error loading '/lib/firmware/b43/ucode5.fw' for device '/devices/pci0000:00/0000:00:1e.0/0000:06:05.0/ssb0:0/firmware/ssb0:0' with driver '(unknown)'
Jul 8 08:12:49 human kernel: [ 545.011879] b43-phy0 ERROR: Firmware file "b43/ucode5.fw" not found or load failed.
Jul 8 08:12:49 human kernel: [ 545.011888] b43-phy0 ERROR: You must go to
http://linuxwireless.org/en/users/Dr...devicefirmware and download the correct firmware (version 4).