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Thread: Slow wifi after 11.10 upgrade

  1. #1
    Join Date
    Sep 2011
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    Slow wifi after 11.10 upgrade

    After having upgraded from 10.10 to 11.10 via 11.04 my wifi response times have changed from very fast to "dial up" slowness.

    Two days ago I opened a thread which no one answered, perhaps because I tried to give too much information.

    This time I will keep it minimalist.

    Before 10.10 => fast wifi
    Now 11.10 => slow wifi

    Please help me diagnose and solve this, as it has ruined my enjoyment of Ubuntu.

  2. #2
    Join Date
    Sep 2011
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    Re: Slow wifi after 11.10 upgrade

    Well that didn't attractt much attention. I have now read the section on Internet problems and will shortly post some output from my system. I will hope that this may elicit a response to my problem.

  3. #3
    Join Date
    Sep 2011
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    Re: Slow wifi after 11.10 upgrade

    This page suggests that the following info may help with diagnosis of my problem.

    http://askubuntu.com/questions/14008...d-to-look-into

    Code:
    paul@VLC-GF7050VT-M:~$ sudo lshw -class network
      *-network               
           description: Ethernet interface
           product: MCP73 Ethernet
           vendor: nVidia Corporation
           physical id: f
           bus info: pci@0000:00:0f.0
           logical name: eth0
           version: a2
           serial: 00:1e:90:63:9f:ac
           capacity: 100Mbit/s
           width: 32 bits
           clock: 66MHz
           capabilities: pm msi bus_master cap_list ethernet physical mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
           configuration: autonegotiation=on broadcast=yes driver=forcedeth driverversion=0.64 latency=0 link=no maxlatency=20 mingnt=1 multicast=yes port=MII
           resources: irq:44 memory:fe9f7000-fe9f7fff ioport:c880(size=8) memory:fe9fe800-fe9fe8ff memory:fe9fe400-fe9fe40f
      *-network
           description: Wireless interface
           physical id: 1
           bus info: usb@1:4
           logical name: wlan0
           serial: 00:12:17:96:81:20
           capabilities: ethernet physical wireless
           configuration: broadcast=yes driver=rt2500usb driverversion=3.0.0-24-generic-pae firmware=N/A ip=192.168.1.33 link=yes multicast=yes wireless=IEEE 802.11bg
    Code:
    paul@VLC-GF7050VT-M:~$ lsusb
    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 001 Device 004: ID 13b1:000d Linksys WUSB54G v4 802.11g Adapter [Ralink RT2500USB]
    Bus 001 Device 005: ID 0bda:0111 Realtek Semiconductor Corp. Card Reader
    Bus 001 Device 006: ID 1d0d:0214  
    Bus 002 Device 002: ID 046d:0928 Logitech, Inc. QuickCam Express
    Bus 002 Device 003: ID 15d9:0a33 Trust International B.V. Optical Mouse
    I am hoping that with this info someone might suggest where I can begin to diagnose and solve this problem.

    Thanks for the attention

  4. #4
    Join Date
    Sep 2011
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    22

    Re: Slow wifi after 11.10 upgrade

    Re: Slow wifi after 11.10 upgrade
    Oops this problem of this upgrade is not attributable to 11.10 upgrade as such, but the following. There was slowness at first during which I deleted and recreated the network connection. But in doing so I forgot that I use open DNS and not the native DNS servers of my ISP. In resetting up the connection I neglected to use Open DNS, and therefore the solution to the slowness - which was most probably solved by one of my interventions at the terminal prompt - remained obfuscated. As soon as I edited the connection to use Open DNS I found that network response times returned to satisfactory levels.

    Here is a the article that reminded me about Open DNS

    http://askubuntu.com/questions/66989...-network-speed

    Go down to the reply by José C Alavez 26/10/11 at 01:27

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