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Thread: Wireless and wired internet drop randomly

  1. #1
    Join Date
    Oct 2012
    Beans
    15

    Wireless and wired internet drop randomly

    Hi,
    I recently switched over to ubuntu 12.04 from windows 7. After the switch I downloaded Broadcom Wireless STA driver from a wired connection which gave me the ability to actually get on the internet. However, although I can get on the internet it continues to drop periodically saying "Server Not Found" and a simple refresh of the page fixes the problem. Although annoying I could deal with this. But I am heavy usenet user and this makes for not being able to download things as well as any packages from the software center. I've included some information if any additional information is need let me know

    @garrett:~$ lspci | grep -i net
    03:00.0 Network controller: Broadcom Corporation BCM4312 802.11b/g LP-PHY (rev 01)
    04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 02)

    garrett@garrett:~$ iwconfig
    lo no wireless extensions.

    eth2 IEEE 802.11 Access Point: Not-Associated
    Link Quality:5 Signal level:213 Noise level:199
    Rx invalid nwid:0 invalid crypt:0 invalid misc:0

    eth0 no wireless extensions.
    (my internet was working during the above "iwconfig command)

  2. #2
    Join Date
    Oct 2012
    Beans
    15

    Re: Wireless and wired internet drop randomly

    Just trying to get this moved back up. If anyone can help me at all with this problem it would be greatly greatly appreciated!!

  3. #3
    Join Date
    Aug 2005
    Location
    South Carolina, USA
    Beans
    20,563
    Distro
    Ubuntu 14.10 Utopic Unicorn

    Re: Wireless and wired internet drop randomly

    Are you using the STA driver? There is another way to get this working that may be more effective:
    Code:
    lsmod | grep -e wl -e b43
    How is your signal strength?
    Code:
    sudo iwlist eth2 scan
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  4. #4
    Join Date
    Oct 2012
    Beans
    15

    Re: Wireless and wired internet drop randomly

    Wired -

    garrett@garrett:~$ lsmod | grep -e wl -e b43
    wl 2646601 0
    lib80211 14040 2 lib80211_crypt_tkip,wl
    garrett@garrett:~$ sudo iwlist eth2 scan
    [sudo] password for garrett:
    eth2 Failed to read scan data : Invalid argument

    and

    garrett@garrett:~$ lsmod | grep -e wl -e b43
    wl 2646601 0
    lib80211 14040 2 lib80211_crypt_tkip,wl
    garrett@garrett:~$ sudo iwlist eth2 scan
    [sudo] password for garrett:
    eth2 Failed to read scan data : Invalid argument

  5. #5
    Join Date
    Oct 2012
    Beans
    15

    Re: Wireless and wired internet drop randomly

    Wired -

    garrett@garrett:~$ lsmod | grep -e wl -e b43
    wl 2646601 0
    lib80211 14040 2 lib80211_crypt_tkip,wl

    And

    garrett@garrett:~$ sudo iwlist eth2 scan
    eth2 Scan completed :
    Cell 01 - Address: 00:1D3:AF:3B:40
    ESSID:"HOME-3B42"
    Mode:Managed
    Frequency:2.412 GHz (Channel 1)
    Quality:5/5 Signal level:-34 dBm Noise level:-92 dBm
    IE: IEEE 802.11i/WPA2 Version 1
    Group Cipher : TKIP
    Pairwise Ciphers (2) : TKIP CCMP
    Authentication Suites (1) : PSK
    IE: Unknown: DD7D0050F204104A0001101044000102103B00010310470010 2880288028801880A880001DD3AF3B40102100054152524953 10230006544738363247102400065254323836301042000831 323334353637381054000800060050F2040001101100124152 52495320544738363220526F75746572100800020084103C00 0101
    IE: WPA Version 1
    Group Cipher : TKIP
    Pairwise Ciphers (2) : TKIP CCMP
    Authentication Suites (1) : PSK
    Encryption keyn
    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9 Mb/s
    18 Mb/s; 36 Mb/s; 54 Mb/s; 6 Mb/s; 12 Mb/s
    24 Mb/s; 48 Mb/s
    Cell 02 - Address: B8:E6:25E:CF1
    ESSID:"2WIRE185"
    Mode:Managed
    Frequency:2.437 GHz (Channel 6)
    Quality:1/5 Signal level:-81 dBm Noise level:-92 dBm
    IE: IEEE 802.11i/WPA2 Version 1
    Group Cipher : TKIP
    Pairwise Ciphers (2) : CCMP TKIP
    Authentication Suites (1) : PSK
    IE: WPA Version 1
    Group Cipher : TKIP
    Pairwise Ciphers (2) : CCMP TKIP
    Authentication Suites (1) : PSK
    Encryption keyn
    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 6 Mb/s; 9 Mb/s
    11 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
    48 Mb/s; 54 Mb/s
    Cell 03 - Address: 34:EF:44:43:3A1
    ESSID:"Mywireless"
    Mode:Managed
    Frequency:2.462 GHz (Channel 11)
    Quality:1/5 Signal level:-85 dBm Noise level:-92 dBm
    IE: IEEE 802.11i/WPA2 Version 1
    Group Cipher : TKIP
    Pairwise Ciphers (2) : CCMP TKIP
    Authentication Suites (1) : PSK
    IE: WPA Version 1
    Group Cipher : TKIP
    Pairwise Ciphers (2) : CCMP TKIP
    Authentication Suites (1) : PSK
    Encryption keyn
    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 6 Mb/s; 9 Mb/s
    11 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
    48 Mb/s; 54 Mb/s

  6. #6
    Join Date
    Oct 2012
    Beans
    15

    Re: Wireless and wired internet drop randomly

    Thanks for the help chili. During wired I was getting about 3.1 MB's down and was still having an issue with it dropping in and out. With wireless I was getting virtually 0 down and still dropping what little connection I had.

  7. #7
    Join Date
    Aug 2005
    Location
    South Carolina, USA
    Beans
    20,563
    Distro
    Ubuntu 14.10 Utopic Unicorn

    Re: Wireless and wired internet drop randomly

    Let's see if we can try a different, possibly better driver. Hook up the ethernet and do:
    Code:
    sudo apt-get remove --purge bcmwl-kernel-source
    sudo apt-get install firmware-b43-lpphy-installer
    After it finishes, reboot with the ethernet detached and let us have your report.
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  8. #8
    Join Date
    Oct 2012
    Beans
    15

    Re: Wireless and wired internet drop randomly

    WIreless Connection (still dropping) -


    Code:

    garrett@garrett:~$ lsmod | grep -e wl -e b43
    b43 342643 0
    mac80211 436455 1 b43
    cfg80211 178679 2 b43,mac80211
    bcma 25651 1 b43
    ssb 50691 1 b43
    Code:

    garrett@garrett:~$ sudo iwlist eth2 scan
    [sudo] password for garrett:
    eth2 Interface doesn't support scanning.

  9. #9
    Join Date
    Oct 2012
    Beans
    15

    Re: Wireless and wired internet drop randomly

    I'm not sure how u post the little code boxes that u use. I apologize for being a rookie!

  10. #10
    Join Date
    Aug 2005
    Location
    South Carolina, USA
    Beans
    20,563
    Distro
    Ubuntu 14.10 Utopic Unicorn

    Re: Wireless and wired internet drop randomly

    I suspect your wireless interface is now wlan0 or wlan-something. Check:
    Code:
    iwconfig
    sudo iwlist wlan0 scan <--or whatever wlan you found
    You can highlight text and then surround them with a code box using the # button at the top of the reply box. Please see attached.
    Attached Images Attached Images
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

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