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First of all, I have to say that I am a new user of Ubuntu and I am not familiar with it at all... After installing Ubuntu 12.10 it would not recognise the wireless networks available... How do I fix this?

After trying the Wireless troubleshooting the results are:

  1. The device is on!

  2. The output of the terminal lshw -C network is :

    *-network UNCLAIMED     
       description: Network controller
       product: Realtek Semiconductor Co., Ltd.
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:02:00.0
       version: 00
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list
       configuration: latency=0
       resources: ioport:3000(size=256) memory:92400000-92403fff
    *-network
       description: Ethernet interface
       product: RTL8101E/RTL8102E PCI Express Fast Ethernet controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:03:00.0
       logical name: eth0
       version: 05
       serial: 4c:72:b9:83:7b:1e
       size: 100Mbit/s
       capacity: 100Mbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet
                     physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169   
                      driverversion=2.3LK-NAPI duplex=full 
                      firmware=rtl_nic/rtl8105e-1.fw 
                      ip=192.168.10.17 latency=0 link=yes multicast=yes 
                      port=MII speed=100Mbit/s
       resources: irq:42 ioport:2000(size=256) memory:90004000-90004fff   
                  memory:90000000-90003fff
    
  3. I tried with no success to find the windows driver, so I cannot use the windows wireless drivers.

  4. The output of the terminal iwconfig is :

      eth0      no wireless extensions.
      lo        no wireless extensions.
    
  5. The output of ifconfig is:

    eth0      Link encap:Ethernet  HWaddr 4c:72:b9:83:7b:1e  
        inet addr:192.168.10.17  Bcast:192.168.10.255  Mask:255.255.255.0
        inet6 addr: fe80::4e72:b9ff:fe83:7b1e/64 Scope:Link
        UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
        RX packets:2705 errors:0 dropped:0 overruns:0 frame:0
        TX packets:2253 errors:0 dropped:0 overruns:0 carrier:0
        collisions:0 txqueuelen:1000 
        RX bytes:2479055 (2.4 MB)  TX bytes:257036 (257.0 KB)
    
    lo        Link encap:Local Loopback  
        inet addr:127.0.0.1  Mask:255.0.0.0
        inet6 addr: ::1/128 Scope:Host
        UP LOOPBACK RUNNING  MTU:16436  Metric:1
        RX packets:548 errors:0 dropped:0 overruns:0 frame:0
        TX packets:548 errors:0 dropped:0 overruns:0 carrier:0
        collisions:0 txqueuelen:0 
        RX bytes:49814 (49.8 KB)  TX bytes:49814 (49.8 KB)
    
  6. The output of the terminal ping -c3 85.190.27.2 is :

    PING 85.190.27.2 (85.190.27.2) 56(84) bytes of data.
    
    --- 85.190.27.2 ping statistics ---
    3 packets transmitted, 0 received, 100% packet loss, time 2014ms
    
  7. The output of the terminal ping www.ubuntu.com is:

    64 bytes from avocado.canonical.com (91.189.90.40): 
        icmp_req=1 ttl=50 time=112 ms
    

    a thousand times

  8. No output with the terminal gksudo gedit /etc/modprobe.d/aliases !!

I must be doing something ....

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Welcome to Ask Ubuntu! We need more hardware information to help you, can you look at this question and then edit your question adding the information. –  Jorge Castro Jan 2 '13 at 14:00
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1 Answer 1

As you are new to Ubuntu I request you to go through the Ubuntu Official Documentation Wireless troubleshooting

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I tried and nothing has changed! Updated the upper! –  Seamos Jan 2 '13 at 14:17
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