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Wireless Networks Thread, Wifi Connected But No Internet !. in Technical; Anyone have problems connecting a Linux laptop to a public wifi.? Trying to get my daughters laptop ready for uni ...
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    tickmike's Avatar
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    Wifi Connected But No Internet !.

    Anyone have problems connecting a Linux laptop to a public wifi.?

    Trying to get my daughters laptop ready for uni next month I wanted to try to see if it would connect to a public wifi, I went down to our local pub and used there connection (wpa with key) with there permission.
    Having first removed all the network adapter's in pcc > network manager, I set up a new connection in pcc, entered the key, it connected and gave me an ip address but said it was not connected to the internet !, I have tried this several times, tried a reboot, still no internet.

    I could ping the router ok but could not ping anything else past that.

    The landlady said her laptop is ok on the internet at the back of the bar .

    I did try http://192.168.1.1 in a browser for access to there router but it was password protected.

    I have had this sort of thing at home and have to go to the routers settings page and click 'connect' but I can not do that on a public wifi. !.

    I can connect at home ok to our 'wifi access point'.

    Do you think this is a DNS problem ?.

    I have two days to get it sorted before we go on a day visit to her uni .

    Edit.. It's the same with the firewall on/off !.
    Last edited by tickmike; 5th August 2012 at 09:15 PM.

  2. #2

    Michael's Avatar
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    When you obtained an IP, did you run ipconfig /all equivalent, as this would display the IP, Gateway and DNS.

    If you have one, you could also try connecting a Smartphone and see if this works.

    It does sound like some form of security, possibly MAC address, but normally you wouldn't even get an IP.

  3. #3
    tickmike's Avatar
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    Hi.
    I did record these yesterday (Below) .
    I do not have a Smartphone !. The landlady said others connect ok except one person last year.

    $ iwconfig
    lo no wireless extensions.

    eth0 no wireless extensions.

    Code:
    wlan0     IEEE 802.11bgn  ESSID:"Staff_Public" 
              Mode:Managed  Frequency:2.412 GHz  Access Point: 00:22:3F:33:1B:96   
              Bit Rate=54 Mb/s   Tx-Power=17 dBm   
              Retry  long limit:7   RTS thr:off   Fragment thr:off
              Power Management:on
              Link Quality=49/70  Signal level=-61 dBm 
              Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
              Tx excessive retries:0  Invalid misc:34   Missed beacon:0
    [/CODE]
    $ ifconfig
    eth0 Link encap:Ethernet HWaddr 00:1F:16:A9:AA:4B
    UP BROADCAST MULTICAST MTU:1500 Metric:1
    RX packets:0 errors:0 dropped:0 overruns:0 frame:0
    TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
    collisions:0 txqueuelen:1000
    RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
    Interrupt:16

    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:475 errors:0 dropped:0 overruns:0 frame:0
    TX packets:475 errors:0 dropped:0 overruns:0 carrier:0
    collisions:0 txqueuelen:0
    RX bytes:40358 (39.4 KiB) TX bytes:40358 (39.4 KiB)

    wlan0 Link encap:Ethernet HWaddr 00:24:2C:A2:73:7B
    inet addr:192.168.1.16 Bcast:192.168.1.255 Mask:255.255.255.0
    inet6 addr: fe80::224:2cff:fea2:737b/64 Scope:Link
    UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
    RX packets:132 errors:0 dropped:0 overruns:0 frame:0
    TX packets:850 errors:0 dropped:0 overruns:0 carrier:0
    collisions:0 txqueuelen:1000
    RX bytes:31190 (30.4 KiB) TX bytes:135743 (132.5 KiB)

    $ route
    Kernel IP routing table
    Destination Gateway Genmask Flags Metric Ref Use Iface
    192.168.1.0 * 255.255.255.0 U 0 0 0 wlan0
    link-local * 255.255.0.0 U 1003 0 0 wlan0
    loopback * 255.0.0.0 U 0 0 0 lo
    default 192.168.1.1 0.0.0.0 UG 0 0 0 wlan0
    Last edited by tickmike; 5th August 2012 at 11:05 PM.

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    tickmike's Avatar
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    What the @@*** are those faces on my post above.

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    plexer's Avatar
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    That's where the forum s/w has converted the ascii for a smiley to a picture of one.

    Ben

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    tickmike's Avatar
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    Quote Originally Posted by plexer View Post
    That's where the forum s/w has converted the ascii for a smiley to a picture of one.

    Ben
    Hi Ben, how do I stop them. ?

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    newpersn's Avatar
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    Highlight the text and click code

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    Hello,

    Can you ping an ip on the net, say 8.8.8.8?

    If you can, try adding these lines into /etc/resolv.conf

    nameserver 192.168.1.1
    nameserver 8.8.8.8

  9. #9
    tickmike's Avatar
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    Quote Originally Posted by dwhyte85 View Post
    Hello,

    Can you ping an ip on the net, say 8.8.8.8?

    If you can, try adding these lines into /etc/resolv.conf

    nameserver 192.168.1.1
    nameserver 8.8.8.8
    I could Not ping anything past the the Router, I'm at home now but will try your idea tomorrow .

    Edit.. Re.."/etc/resolv.conf" It says do not edit this file it will be over ridden !. Is it ok to edit that file for a test ?.
    Last edited by tickmike; 5th August 2012 at 10:16 PM.

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    glennda's Avatar
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    TBH it sounds like the router has blocked outbound access from the IP you had for some reason? I see this occasioanlly on Watchguard Firewall/Wireless boxes. Normally a restart of the router fixes the issue but i doubt the issue is with the laptop if it will connect at home.

  11. #11
    tickmike's Avatar
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    What if I try putting my ISP's (Eclipse ISP at home) DNS servers in on the wLan set up page and trying that tomorrow ?.
    Will that work on another ISP ?

  12. #12


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    Google's or OpenDNS' DNS servers would be better. I wouldn't bother with your ISPs.

    Code:
    Google
    8.8.8.8
    8.8.4.4
    
    OpenDNS
    208.67.222.222
    208.67.220.220

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    tickmike's Avatar
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    OK thanks I will try that .

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    Quote Originally Posted by tickmike View Post
    how do I stop them?
    Click Edit Post then Go Advanced, highlight the text you don't want to have smilies in and then click the CODE button (hash symbol).


  15. #15
    tickmike's Avatar
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    Quote Originally Posted by Arthur View Post
    Click Edit Post then Go Advanced, highlight the text you don't want to have smilies in and then click the CODE button (hash symbol).

    I give up , i have a box now !.
    Last edited by tickmike; 5th August 2012 at 11:28 PM.

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