Configuring the Wireless Router with the Comcast Cable Modem Can Speed Up Your Net Services

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The communications package from Comcast offers high-speed internet which is becoming increasingly popular. Configuring a Comcast cable modem with a wireless router will enable users to get access to high speed internet as well as high quality downloading speed.

It also offers parental controls which are easy to use. Configuration is fairly simple and the internet performance is four times better than that of a DSL connection. Comcast has become one of the most famous telecommunications providers in the world. [Read more…]

How to find the saved Wireless passwords in Windows 7

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Ever found yourself in a situation when you need to provide someone or yourself the WEP, WPA, WPA2-PSK password of the wifi network you are using or have used it previously and you are left wondering: “How do I find the wireless password saved in Windows?“. By default Windows saves the wireless password when you choose “connect automatically”. All these keys along with the wireless network settings are stored in Windows. If in a case you need to see the passwords specific to a network, you can fetch it back from Windows in following simple steps. [Read more…]

How to solve: No Wireless Network Detected in Ubuntu 11.10

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One of the most common problem one faces after a fresh install of Ubuntu is the loss of Wireless Network. And believe me that is the biggest pain for a normal user. The problem double-folds if the wireless adapter is broadcom (do not know what is your wireless adapter? click here). Some of the general problems are showing no wireless adapter, showing wireless adapter but detecting no wireless networks etc. [Read more…]

How to install restricted wireless drivers in Ubuntu without wired network

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If you are having trouble with your wireless network adapter then you might get some help from these posts here and here.

To install the restricted drivers (broadcom wireless drivers) in the ubuntu 11.04 Natty Narwhal and Ubuntu 11.10 Oneiric without a wired Internet connection follow the instructions below: [Read more…]

How to solve: No wireless network in Ubuntu 11.04 : Centrino Wireless-N 1000

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Official Ubuntu circle with wordmark. Replace ...
Image via Wikipedia

Wireless and Ubuntu never go hand in hand. No version of Ubuntu has worked out of box for all wireless hardware. This post is meant for people who has Centrino Wireless-N 1000 wireless adapter. If you do not know what is the make of your hardware, follow this link: Know your Network Adapter.

If your network Adapter is of Broadcom BCM 43XX series, you may want to follow this link: Wireless problem with Broadcom in Ubuntu 11.04

Problem Detection:

Now if you are still here I assume that you have a Centrino Wireless adapter from Intel. Run the following command:

 sudo rfkill list 
1: phy0: Wireless LAN
    Soft blocked: yes
    Hard blocked: no
2: acer-wireless: Wireless LAN
    Soft blocked: yes
    Hard blocked: no

Instead of acer-wireless, there may be other result as well. If it says Soft blocked: YES that means the wireless is turned off in software. Follow these solutions.

Solution 1:

If you are connected to Ethernet (Wired Network) disconnect it and type this command:

sudo rfkill unblock all 
sudo rfkill list all

Solution 2: 

If the above command does not solve the problem. Try with this command (replace the acer with your result in previous command output ):

sudo rmmod -f acer-wmi 
sudo rfkill unblock all 
sudo rfkill list all

Make the changes permanent:

If the above mentioned solution worked then you might want to make it permanent by amending a few lines in the configuration file so that you don’t need to type these commands again and again on each boot. Type the following commands (again replacing “acer”): 

sudo su 
echo "blacklist acer-wmi" >> /etc/modprobe.d/blacklist.conf 
exit

Hopefully this works for you all! Questions, suggestions and feedbacks are welcomed. If you liked the post then please acknowledge it by liking/voting/commenting on the post. Enjoy :)

Sources: Ubuntu Forums

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How to know which network adapter I’m using?

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To know the manufacturer of the network adapter of your computer in Linux, type this command in terminal:

sudo lshw -C network

The output of the command may look something like this:

       *-network               
       description: Wireless interface
       product: BCM4313 802.11b/g/n Wireless LAN Controller
       vendor: Broadcom Corporation
       physical id: 0
       bus info: pci@0000:03:00.0
       logical name: wlan0
       version: 01
       serial: 70:f1:a1:c2:f2:e9
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=brcm80211 driverversion=2.6.38-8-generic firmware=N/A ip=172.17.4.253 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn
       resources: irq:17 memory:f0500000-f0503fff
  *-network
       description: Ethernet interface
       product: AR8152 v1.1 Fast Ethernet
       vendor: Atheros Communications
       physical id: 0
       bus info: pci@0000:04:00.0
       logical name: eth0
       version: c1
       serial: b8:ac:6f:67:11:46
       capacity: 100Mbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress vpd bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=atl1c driverversion=1.0.1.0-NAPI firmware=N/A latency=0 link=no multicast=yes port=twisted pair
       resources: irq:43 memory:f0400000-f043ffff ioport:2000(size=128)

Check the output closely. It gives information about both Wired and Wireless Network Adapter. No need to specify that one with Wireless Interface describes wireless adapter and one with Ethernet Interface describes Wired Network Adapter. As you can see in the output, I have Broadcom’s wireless adapter and Atheros Ethernet (wired) adapter.

Questions, suggestions and feedbacks are welcomed. If you liked the post then please acknowledge it by liking/voting/commenting on the post. Enjoy :)

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How to solve: No wireless networks in Ubuntu 12.04, 11.10 and 11.04

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Problem:

Recently I installed Ubuntu 11.04 (wireless was working while installing) on my Dell Inspiron N4010 which uses Broadcom Wireless Adapter (How to know which network adapter you are using?). Wireless networks were even available when I used it for the first time after installing. Then there were message from Ubuntu that restricted drivers are available for Broadcom STA (BCM4311) (why did it ask me to download the wireless drivers when wireless was working on the first hand..??). Any ways, I said, why not? I clicked on the activate button. It installed the driver and asked me to restart the computer. I restarted it and there you go. Wireless is on. But it detects no networks. I know there are wireless networks but Ubuntu is not detecting any wireless networks.

Reason:

The reason what I think is some compatibility issues (it’s probably a bug in 11.04) with this version of Ubuntu and the restricted driver because same driver was working quite well in previous versions of Ubuntu.

Solution:

Here is what you need to do. Use other Broadcom drivers. Download these drivers (from Windows or through wired network or a friend’s computer or from wherever you are reading this article :) ).

For 32 bit: http://ie.archive.ubuntu.com/ubuntu/pool/restricted/b/bcmwl/bcmwl-kernel-source_5.+bdcom-0ubuntu5_i386.deb

For 64 bit: http://ie.archive.ubuntu.com/ubuntu/pool/restricted/b/bcmwl/bcmwl-kernel-source_5.+bdcom-0ubuntu5_amd64.deb

(Don’t know which Ubuntu you are using? Click here: Check you Ubuntu architecture)

Now remove the previous drivers in Ubuntu 11.04 by using: sudo apt-get remove bcmwl-kernel-source

Now install the appropriate driver (you have downloaded from the above links). Restart your computer. If restarting doesn’t work try shut down and then start it (strange…but works). Enjoy :)

Alternate Solution 1:

If you could connect through a wired network, this solution might work for you. (If not then check here). The problem is with STA drivers so better to deactivate/uninstall it.

Alternate Solution 2:

People who cannot solve the problem with the above specified method may want to try this one. Here you go:

  • open the ‘Synaptic Package Manager‘ (if you are using Ubuntu 11.10 then install it first from the software cemter) and search for ‘bcm’
  • uninstall the ‘bcm-kernel-source‘ package
  • make sure that the ‘firmware-b43-installer‘ and the ‘b43-fwcutter‘ packages are installed

  • type into terminal:

    cat /etc/modprobe.d/* | egrep '8180|acx|at76|ath|b43|bcm|CX|eth|ipw|irmware|isl|lbtf|orinoco|ndiswrapper|NPE|p54|prism|rtl|rt2|rt3|rt6|rt7|witch|wl'

    (you may want to copy this till the end if it is not visible properly) and see if the term ‘blacklist bcm43xx‘ is there

  • if it is, then type cd /etc/modprobe.d/ and then sudo gedit blacklist.conf put a # in front of the line: blacklist bcm43xx then save the file (I was getting error messages in the terminal about not being able to save, but it actually did save properly).
  • reboot
Hopefully this works for you all!
Questions, suggestions and feedbacks are welcomed. A word of thanks is always appreciated. And if you like the article and the blog then please subscribe to stay in touch.

Sources: ubuntuforums, askubuntu