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Thread: 12.04 USB wireless issue (netgear wna1100)

  1. #1
    Join Date
    May 2012
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    12.04 USB wireless issue (netgear wna1100)

    I have recently upgraded to 12.04 but I can't resolve my issue with wireless networking. I have a Netgear WNA1100 usb wireless device, which looks like it connects to the network. I can ping other computers on my network, but I can't ping my router or external addresses. I have not been able to find anything that mentions this type of problem in the forums or the trouble shooting guides.

    As far as I can tell it should work.

    Any suggestions would be appreciated.

  2. #2
    Join Date
    Aug 2005
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    Ubuntu 14.04 Trusty Tahr

    Re: 12.04 USB wireless issue (netgear wna1100)

    Please post:
    iwconfig
    ifconfig
    nm-tool
    Thanks.
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  3. #3
    Join Date
    May 2012
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    Re: 12.04 USB wireless issue (netgear wna1100)

    iwconfig
    Code:
    lo        no wireless extensions. 
    
    wlan1     IEEE 802.11bgn  ESSID:"wireless"  
              Mode:Managed  Frequency:2.437 GHz  Access Point: 00:01:38:8E:75:54   
              Bit Rate=54 Mb/s   Tx-Power=20 dBm   
              Retry  long limit:7   RTS thr:off   Fragment thr:off 
              Power Management:off 
              Link Quality=63/70  Signal level=-47 dBm  
              Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0 
              Tx excessive retries:0  Invalid misc:52   Missed beacon:0 
    
    eth0      no wireless extensions.
    iwlist wlan1 scan
    Code:
    iwlist wlan1 scan 
    wlan1     Scan completed : 
              Cell 01 - Address: 00:01:38:8E:75:54 
                        Channel:6 
                        Frequency:2.437 GHz (Channel 6) 
                        Quality=62/70  Signal level=-48 dBm  
                        Encryption key:on 
                        ESSID:"wireless" 
                        Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 22 Mb/s 
                        Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s 
                                  36 Mb/s; 48 Mb/s; 54 Mb/s 
                        Mode:Master 
                        Extra:tsf=00000031b1d9c1b7 
                        Extra: Last beacon: 1628ms ago 
                        IE: Unknown: 0008776972656C657373
    nm-tool:
    Code:
    NetworkManager Tool 
    
    State: connected (global) 
    
    - Device: wlan1  [wireless] ---------------------------------------------------- 
      Type:              802.11 WiFi 
      Driver:            ath9k_htc 
      State:             connected 
      Default:           yes 
      HW Address:        E0:46:9A:15:2D:10 
    
      Capabilities: 
        Speed:           54 Mb/s 
    
      Wireless Properties 
        WEP Encryption:  yes 
        WPA Encryption:  yes 
        WPA2 Encryption: yes 
    
      Wireless Access Points (* = current AP) 
        Lutana-Hall-WLAN:Infra, 02:0B:6B:DB:EC:8D, Freq 2432 MHz, Rate 54 Mb/s, Strength 12 WPA WPA2 
        lh.tmn.com.au:   Infra, 00:0B:6B:DB:EC:8C, Freq 2432 MHz, Rate 54 Mb/s, Strength 10 WPA2 
        RF TEST:         Infra, 02:0B:6B:DB:EC:8E, Freq 2432 MHz, Rate 54 Mb/s, Strength 10 WPA2 
        TOMIZONE Hotspot:Infra, 00:27:22:2A:3A:CE, Freq 2412 MHz, Rate 54 Mb/s, Strength 19 
        *wireless:       Infra, 00:01:38:8E:75:54, Freq 2437 MHz, Rate 54 Mb/s, Strength 73 WEP 
        lutanahall-link: Infra, 02:0B:6B:DB:EC:8C, Freq 2432 MHz, Rate 54 Mb/s, Strength 20 WPA2 
    
      IPv4 Settings: 
        Address:         192.168.1.8 
        Prefix:          24 (255.255.255.0) 
        Gateway:         192.168.1.1 
    
        DNS:             192.168.1.1 
                        IE: Unknown: 010582848B962C 
                        IE: Unknown: 030106 
                        IE: Unknown: 2A0100 
                        IE: Unknown: 32080C1218243048606C
    ifconfig:
    Code:
    eth0      Link encap:Ethernet  HWaddr 00:1a:92:21:c7:cf  
              inet addr:192.168.1.2  Bcast:192.168.1.255  Mask:255.255.255.0 
              inet6 addr: fe80::21a:92ff:fe21:c7cf/64 Scope:Link 
              UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1 
              RX packets:1040 errors:0 dropped:0 overruns:0 frame:0 
              TX packets:797 errors:0 dropped:0 overruns:0 carrier:0 
              collisions:0 txqueuelen:1000 
              RX bytes:152159 (152.1 KB)  TX bytes:389413 (389.4 KB) 
              Interrupt:20 Base address:0xe800 
    
    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:73 errors:0 dropped:0 overruns:0 frame:0 
              TX packets:73 errors:0 dropped:0 overruns:0 carrier:0 
              collisions:0 txqueuelen:0 
              RX bytes:7783 (7.7 KB)  TX bytes:7783 (7.7 KB) 
    
    wlan1     Link encap:Ethernet  HWaddr e0:46:9a:15:2d:10  
              inet addr:192.168.1.8  Bcast:192.168.1.255  Mask:255.255.255.0 
              inet6 addr: fe80::e246:9aff:fe15:2d10/64 Scope:Link 
              UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1 
              RX packets:172 errors:0 dropped:0 overruns:0 frame:0 
              TX packets:125 errors:0 dropped:0 overruns:0 carrier:0 
              collisions:0 txqueuelen:1000 
              RX bytes:31450 (31.4 KB)  TX bytes:17704 (17.7 KB)

  4. #4
    Join Date
    Aug 2005
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    Re: 12.04 USB wireless issue (netgear wna1100)

    eth0 Link encap:Ethernet HWaddr 00:1a:92:21:c7:cf
    inet addr:192.168.1.2 Bcast:192.168.1.255 Mask:255.255.255.0
    inet6 addr: fe80::21a:92ff:fe21:c7cf/64 Scope:Link
    I see you have both wired and wireless connected with IP addresses. That's always a dicey and tricky proposition. When we are testing wireless, please be sure to detach the ethernet cable. With it detached, what is the result of:
    Code:
    ping -c3 192.168.1.1
    ping -c3 8.8.8.8
    ping -c3 www.google.com
    route -n
    All your other readings, aside from two IP addresses, look perfectly good.
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  5. #5
    Join Date
    May 2012
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    Re: 12.04 USB wireless issue (netgear wna1100)

    I have done these tests without the ethernet cable plugged in. I had it plugged in for convenience.

    The results of the ping tests return with 100% packet loss. I did not run the ping for google .com as I don't know yet if there is a DNS issue.

    Code:
     ping -c3 192.168.1.1 
    PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data. 
    From 192.168.1.2 icmp_seq=1 Destination Host Unreachable 
    From 192.168.1.2 icmp_seq=2 Destination Host Unreachable 
    From 192.168.1.2 icmp_seq=3 Destination Host Unreachable 
    
    --- 192.168.1.1 ping statistics --- 
    3 packets transmitted, 0 received, +3 errors, 100% packet loss, time 2015ms 
    pipe 3 
    
    
    ping -c3 8.8.8.8 
    PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data. 
    
    --- 8.8.8.8 ping statistics --- 
    3 packets transmitted, 0 received, 100% packet loss, time 2014ms
    Route -n test:
    Code:
     route -n 
    Kernel IP routing table 
    Destination     Gateway         Genmask         Flags Metric Ref    Use Iface 
    0.0.0.0         192.168.1.1     0.0.0.0         UG    0      0        0 wlan1 
    0.0.0.0         192.168.1.1     0.0.0.0         UG    100    0        0 eth0 
    169.254.0.0     0.0.0.0         255.255.0.0     U     1000   0        0 wlan1 
    192.168.1.0     0.0.0.0         255.255.255.0   U     0      0        0 eth0 
    192.168.1.0     0.0.0.0         255.255.255.0   U     2      0        0 wlan1

  6. #6
    Join Date
    May 2012
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    Re: 12.04 USB wireless issue (netgear wna1100)

    I have just discovered that I can ping the google server immediately after connecting the wireless network:
    Code:
    ping -c20 8.8.8.8 
    PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data. 
    64 bytes from 8.8.8.8: icmp_req=1 ttl=57 time=42.5 ms 
    64 bytes from 8.8.8.8: icmp_req=2 ttl=57 time=40.9 ms 
    64 bytes from 8.8.8.8: icmp_req=3 ttl=57 time=40.3 ms 
    64 bytes from 8.8.8.8: icmp_req=4 ttl=57 time=40.3 ms 
    64 bytes from 8.8.8.8: icmp_req=5 ttl=57 time=40.5 ms 
    64 bytes from 8.8.8.8: icmp_req=6 ttl=57 time=40.0 ms 
    64 bytes from 8.8.8.8: icmp_req=7 ttl=57 time=40.1 ms 
    64 bytes from 8.8.8.8: icmp_req=8 ttl=57 time=40.2 ms 
    
    --- 8.8.8.8 ping statistics --- 
    20 packets transmitted, 8 received, 60% packet loss, time 19095ms 
    rtt min/avg/max/mdev = 40.080/40.666/42.543/0.775 ms
    I could only manage 8 out of the 20 packets. It seems like it has a time limit.

  7. #7
    Join Date
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    Ubuntu 14.04 Trusty Tahr

    Re: 12.04 USB wireless issue (netgear wna1100)

    Fascinating. I wonder what's going on under the hood. Please reboot with the ethernet detached so we have a clean slate. Then run and post:
    Code:
    sudo cat /var/log/syslog | grep -e etwork -e ath -e wlan | tail -n25
    Thanks.
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  8. #8
    Join Date
    May 2012
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    Thumbs up Re: 12.04 USB wireless issue (netgear wna1100)

    It's like the windows problem solving guide: Try turning it off and on again.

    I restarted the router then rebooted the PC now it works, go figure.

    Thanks for your help.

    Cheers,
    Humpy125

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