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Thread: Unable to access web. TP-LINK TL-WN725N wifi USB dongle

  1. #1
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    Question Unable to access web. TP-LINK TL-WN725N wifi USB dongle

    I'm fairly computer savvy, but still super new to Linux so please bear with me.

    The adapter info: http://wikidevi.com/wiki/TP-LINK_TL-WN725N_v2
    Ubuntu 13


    I downloaded the driver zip from https://github.com/lwfinger/rtl8188eu
    Copied the bin file: sudo cp rtl8188eufw.bin /lib/firmware/rtlwifi/
    "make all", then "make install"


    The installation appeared to work and Ubuntu now recognises the device. I am also able to connect to my home wifi network, and obtain a valid IP address from my ISP. However, if I point my browser to google.com, I just get "This web page is not available". Punching in google's IP address doesn't work either. Pinging gets "unknown host google.com". The little status icon shows no reception "bars", even when the computer is right beside router.

    Any ideas?
    Thanks for your attention.

  2. #2
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    Re: Unable to access web. TP-LINK TL-WN725N wifi USB dongle

    May we please see the result of these terminal commands?
    Code:
    iwconfig
    dmesg | grep rtl
    nm-tool
    Thanks.
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  3. #3
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    Re: Unable to access web. TP-LINK TL-WN725N wifi USB dongle

    Code:
    joe@bigblackbox:~$ iwconfig
    wlan0     IEEE 802.11bgn  ESSID:"ampunchinka"  Nickname:"<WIFI@REALTEK>"
              Mode:Managed  Frequency:2.412 GHz  Access Point: 00:1B:63:2C:D0:1E   
              Bit Rate:65 Mb/s   Sensitivity:0/0  
              Retry:off   RTS thr:off   Fragment thr:off
              Power Management:off
              Link Quality=0/100  Signal level=2/100  Noise level=0/100
              Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
              Tx excessive retries:0  Invalid misc:0   Missed beacon:0
    
    
    lo        no wireless extensions.
    
    
    eth0      no wireless extensions.
    
    
    joe@bigblackbox:~$ dmesg | grep rtl
    joe@bigblackbox:~$ nm-tool
    
    
    NetworkManager Tool
    
    
    State: connected (global)
    
    
    - Device: wlan0  [ampunchinka] -------------------------------------------------
      Type:              802.11 WiFi
      Driver:            r8188eu
      State:             connected
      Default:           yes
      HW Address:        64:66:B3:08:35:46
    
    
      Capabilities:
        Speed:           65 Mb/s
    
    
      Wireless Properties
        WEP Encryption:  yes
        WPA Encryption:  yes
        WPA2 Encryption: yes
    
    
      Wireless Access Points (* = current AP)
        TELUS0982:       Infra, 20:76:00:01:C9:50, Freq 2412 MHz, Rate 16 Mb/s, Strength 0 WPA WPA2
        TELUS2591:       Infra, 20:76:00:06:33:80, Freq 2462 MHz, Rate 16 Mb/s, Strength 0 WPA WPA2
        595484:          Infra, 7C:05:07:CC:11:53, Freq 2462 MHz, Rate 16 Mb/s, Strength 0 WPA WPA2
        TELUS1022:       Infra, 00:26:B8:EF:34:B8, Freq 2462 MHz, Rate 16 Mb/s, Strength 0 WPA WPA2
        Linksys22734:    Infra, C8:D7:19:4D:4B:A0, Freq 2462 MHz, Rate 16 Mb/s, Strength 0 WPA2
        klass-guest:     Infra, 20:AA:4B:D7:BD:4B, Freq 2437 MHz, Rate 16 Mb/s, Strength 0
        Shum:            Infra, 00:26:B8:F5:97:CC, Freq 2412 MHz, Rate 16 Mb/s, Strength 0 WPA WPA2
        TELUS3037:       Infra, A8:39:44:55:06:A0, Freq 2412 MHz, Rate 16 Mb/s, Strength 0 WPA WPA2
        TELUS1514:       Infra, 10:9F:A9:E8:F7:3C, Freq 2437 MHz, Rate 16 Mb/s, Strength 0 WPA WPA2
        *ampunchinka:    Infra, 00:1B:63:2C:D0:1E, Freq 2412 MHz, Rate 2 Mb/s, Strength 2
        klass:           Infra, 20:AA:4B:D7:BD:4A, Freq 2437 MHz, Rate 16 Mb/s, Strength 0 WPA WPA2
    
    
      IPv4 Settings:
        Address:         154.5.220.92
        Prefix:          22 (255.255.252.0)
        Gateway:         154.5.220.1
    
    
        DNS:             75.153.176.9
        DNS:             75.153.176.1
    
    
    
    
    - Device: eth0 -----------------------------------------------------------------
      Type:              Wired
      Driver:            sky2
      State:             unavailable
      Default:           no
      HW Address:        00:11:D8:11:87:F3
    
    
      Capabilities:
        Carrier Detect:  yes
    
    
      Wired Properties
        Carrier:         off
    
    
    
    
    joe@bigblackbox:~$
    By the way, the blue status light on the dongle does flash when it's plugged in.

    I should also add that the device works perfectly in the Windows XP environment.

    Thanks again for your interest.

  4. #4
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    Re: Unable to access web. TP-LINK TL-WN725N wifi USB dongle

    It looks pretty solid so far! Are connected to a cable or DSL modem? Is authentication required; i.e. a username and password? Can you ping the gateway?
    Code:
    ping -c3 154.5.220.1
    ping -c3 75.153.176.9
    ping -c3 8.8.8.8
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  5. #5
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    Re: Unable to access web. TP-LINK TL-WN725N wifi USB dongle

    Zyxel VSG1432 DSL modem via Apple Airport wifi access point. Both in bridge mode (ie DHCP turned off). No authentication required.

    All three "Destination Host Unreachable".

  6. #6
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    Re: Unable to access web. TP-LINK TL-WN725N wifi USB dongle

    What addresses, etc. do you get in Windows? Are there any clues here?
    Code:
    cat /var/log/syslog grep -e wlan -e etwork
    If DHCP is turned off in both devices, where do you get this number?
    IPv4 Settings:
    Address: 154.5.220.92
    Is it a static address provided by your ISP?
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  7. #7
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    Re: Unable to access web. TP-LINK TL-WN725N wifi USB dongle

    It is a dynamic IP assigned by my ISP. I would get a similar one in Windows. The output to your cat command is extremely long. Do you want me to post the entire thing?

  8. #8
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    Re: Unable to access web. TP-LINK TL-WN725N wifi USB dongle

    Let's shorten it up:
    Code:
    cat /var/log/syslog grep -e wlan -e etwork | tail -n20
    It is a dynamic IP assigned by my ISP. I would get a similar one in Windows.
    May we see it, please?
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  9. #9
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    Re: Unable to access web. TP-LINK TL-WN725N wifi USB dongle

    Windows:
    Attached Images Attached Images
    Last edited by exekutive; January 10th, 2014 at 09:59 PM.

  10. #10
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    Re: Unable to access web. TP-LINK TL-WN725N wifi USB dongle

    Code:
    joe@bigblackbox:~$ cat /var/log/syslog grep -e wlan -e etwork | tail -n20
    cat: grep: No such file or directory
    cat: wlan: No such file or directory
    cat: etwork: No such file or directory
    Jan 10 12:50:14 bigblackbox avahi-daemon[666]: Joining mDNS multicast group on interface wlan0.IPv4 with address 75.157.12.208.$
    Jan 10 12:50:14 bigblackbox avahi-daemon[666]: New relevant interface wlan0.IPv4 for mDNS.$
    Jan 10 12:50:14 bigblackbox avahi-daemon[666]: Registering new address record for 75.157.12.208 on wlan0.IPv4.$
    Jan 10 12:50:15 bigblackbox NetworkManager[832]: <info> (wlan0): device state change: ip-config -> secondaries (reason 'none') [70 90 0]$
    Jan 10 12:50:15 bigblackbox NetworkManager[832]: <info> Activation (wlan0) Stage 5 of 5 (IPv4 Commit) complete.$
    Jan 10 12:50:15 bigblackbox NetworkManager[832]: <info> (wlan0): device state change: secondaries -> activated (reason 'none') [90 100 0]$
    Jan 10 12:50:15 bigblackbox NetworkManager[832]: <info> Policy set 'ampunchinka' (wlan0) as default for IPv4 routing and DNS.$
    Jan 10 12:50:15 bigblackbox NetworkManager[832]: <info> Writing DNS information to /sbin/resolvconf$
    Jan 10 12:50:15 bigblackbox dnsmasq[1382]: setting upstream servers from DBus$
    Jan 10 12:50:15 bigblackbox dnsmasq[1382]: using nameserver 75.153.176.1#53$
    Jan 10 12:50:15 bigblackbox dnsmasq[1382]: using nameserver 75.153.176.9#53$
    Jan 10 12:50:16 bigblackbox NetworkManager[832]: <info> Activation (wlan0) successful, device activated.$
    Jan 10 12:50:16 bigblackbox avahi-daemon[666]: Joining mDNS multicast group on interface wlan0.IPv6 with address fe80::6666:b3ff:fe08:3546.$
    Jan 10 12:50:16 bigblackbox avahi-daemon[666]: New relevant interface wlan0.IPv6 for mDNS.$
    Jan 10 12:50:16 bigblackbox avahi-daemon[666]: Registering new address record for fe80::6666:b3ff:fe08:3546 on wlan0.*.$
    Jan 10 12:50:22 bigblackbox ntpdate[2172]: step time server 91.189.94.4 offset -0.513440 sec$
    Jan 10 12:50:34 bigblackbox NetworkManager[832]: <info> (wlan0): IP6 addrconf timed out or failed.$
    Jan 10 12:50:34 bigblackbox NetworkManager[832]: <info> Activation (wlan0) Stage 4 of 5 (IPv6 Configure Timeout) scheduled...$
    Jan 10 12:50:34 bigblackbox NetworkManager[832]: <info> Activation (wlan0) Stage 4 of 5 (IPv6 Configure Timeout) started...$
    Jan 10 12:50:34 bigblackbox NetworkManager[832]: <info> Activation (wlan0) Stage 4 of 5 (IPv6 Configure Timeout) complete.$
    joe@bigblackbox:~$

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