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How to Change ISP DNS Settings On Linksys WRT54G Wireless Router

DNS (Domain Name System) Server resolves domain name you type on the browser address bar into a respective IP address. While configuring a Linksys router, it takes the default DNS server information provided by your Internet Service Provider. It usually works fine but if your ISP owned DNS server is slow, you can edit the Domain Name System entry set on Linksys router by yourself and change it with better server details you want to enter. This tutorial explains how to change the current DNS settings on Linksys WRT54G wireless router.


Change Current DNS Details On Linksys WRT54G Router
  1. Connect WRT54G to PC

    Connect your PC and WRT54G using an Ethernet cable and then power on both devices.

  2. Login

    Type 192.168.1.1 on the browser address bar and press enter. Now enter the details below.

    User Name: --- [No user name]
    Password : admin

  3. Change Domain Name System Server

    On the basic setup page under Setup, you can see two lines for DNS1 and DNS2. By default, these details are provided by your ISP. If you want you can use other server address like Open or Google DNS. Click the link below to learn more about these two free services.
    Change the Belkin Default DNS Settings

    If your ISP gives you another set of addresses, you can enter them here. After entering the entries click on Save Settings.

One of the common reason a user to change the default ISP provided DNS server information saved on Linksys Router is its underperformance.  Nowadays there are many organizations offer better free Domain Name System Server faster than the servers of most of the Internet Service Providers.

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How to Redirect Namecheap Non-WWW Domain to WWW Version of Custom Domain Address?

Yesterday I purchased a new domain name from NameCheap for my Blogspot blog https://networksolutions4u.blogspot.com. The domain name I purchased is https://CoreNetWorkz.com. I know, a blog with Blogspot subdomain address does not look professional. A custom domain name will make it look professional and completed the steps to set up the custom domain name in the Blogger account. The Blogspot address https://networksolutions4u.blogspot.com successfully redirected to the new NameCheap custom domain name https://www.CoreNetWorkz.com.

Soon I realized a redirection issue. Though everything looks fine, I am not able to access my blog using the non-WWW version of the domain name.

Whenever I type the naked domain, it doesn't show my blog, but it works fine with the WWW version.

There is a redirection issue either with Blogspot or with Namecheap.

I must say, I couldn't find enough tutorials to solve this issue and I had to spend a lot of time to identify and rectify the problem.

This tutorial explains how to do correct the 301 redirection issues from the naked NameCheap domain name to the WWW version of the domain name.



301 Redirection Of Naked NameCheap Domain to WWW Version
How do I redirect a NameCheap URL without www to www version? To redirect a NameCheap domain and fix naked domain redirection problems, follow the steps provided below.

  1. Login to NameCheap account

    Click on https://www.namecheap.com/ to access their website and Sign In using the username and password you have created.

  2. In My Account page Click on Manage domains, or you can click on view link near the number of domains in your account.


  3. Click on the domain name which shows redirection problems

  4. Click on URL Forwarding under Host Management


    Here we must enter the CNAME details (Alias), Type of URL redirect (301 Redirection), DNS details insertions, etc.

  5. Enter the following details

    Under IP Address/URL, @ is http://www.your domain.com and www is ghs.google.com. If you are prompted to enter a manual TTL value, it is 1800. The URL Redirect should be 301 and select CNAME (Alias) as below.


    After entering the details, click on Save Changes.

  6. Log in to your Blogger account and complete the steps provided in the link below.
    Complete Blogger Custom URL Configuration

Now if you type your blog address without WWW (the naked version of the custom web address), it will redirect to the WWW version.

Redirecting non-www version of blog URL to WWW version helps to retain visitors who use the naked web address of your website.

So you will not lose your visitors who are not using WWW prefix. 301 redirection ensures the permanent redirection of nonWWW version of your NameCheap URL to WWW version and avoids duplicate content issues in Google.

Now visitors using naked and WWW version of blog address will reach your blog without having any redirection issues.

  1. How to Optimize Blogger Blog For High Traffic
  2. Change Default GoDaddy Email MX Records With Third-Party Services

Since any changes with CNAME details may take time to show, you may need to wait a few more hours.

If the issue persists even after waiting for more than five hours (though recommended to wait 12 hours), I suggest you cross-check the settings you made in the NameCheap account and rectify any deviations.

  1. Point Domain to Hosting in Different Godaddy Accounts
  2. Penalties With Spun Content


If you still facing redirection issues with the bare domain name, you may need to check the DNS issues. To check it, visit the link below.

NameCheap DNS Server Issues Made The Bare Domain Version Down

CoreNetworkZ has a collection of tutorials explaining various types of URL redirection cases like NameCheap Wildcard redirection, redirect www to the non-www version with domain forwarding, etc.

How to Set Up Custom Domain Name For a Blogger Blog

For a professional blogger, the custom domain name for his blog is a must and this tutorial explains step by step procedure to add it for a Blogspot blog. It also explains how to redirect the root page and other posts successfully to the respective pages in a new address. This tutorial shows a practical example by redirecting a Blogspot address to a custom address. I am redirecting http://networksolutions4u.blogspot.com to http://www.corenetworkz.com. It is a two-step procedure. The first step is to enter CNAME and a-records in the domain (registrar website) control panel and the second step is to enter the new address which you want to point to your Blogspot blog.

1. How to Enter CNAME and A-Records For Your Blogger Blog

Before setting a domain name pointing to your blogger site from your blogger account, you must enter the CNAME and A-records in the domain registrar's control panel. To do this step, you must log on to the registrar's website. Under domain management, you can find DNS (Domain Name System) settings. On that page, you can enter the following information. For more information, I recommend you refer to the steps mentioned in the link below.
Redirect Naked Namecheap URL to WWW Version

CNAME should point to ghs.google.com
A-records should point following 4 IP addresses.
  1. 216.239.32.21
  2. 216.239.34.21
  3. 216.239.36.21
  4. 216.239.38.21

It may take hours to activate the DNS settings you entered on the registrar's website. After this, you should make the following changes to the blogger account.

2. Add Custom Domain in Blogger Account for Your Blog
  1. Sign into Your blogger account and click on your blog listed here

  2. Click on Settings
    test

  3. Click on Settings and click Setup a 3rd party URL for your blog link under Publishing


  4. Now enter the address you have purchased


  5. You must enter the WWW version of the name


  6. Now the address looks like


  7. If you haven't added CNAME details at the domain control panel, you will see the following error.


    If you are seeing the alert, "We have not been able to verify your authority to this domain. Error 12", you must crosscheck the CNAME details entered under DNS settings in the domain registrar's control panel.

Now the custom address for your Blogspot site is configured and you can access your blog through the new address. Now onwards http://networksolutions4u.blogspot.com redirects to http://www.corenetworkz.com. All the published posts too will be redirected to respective pages.

Benefits
  1. 301 redirection from old URL to new URL:

    Backlinks, bookmarks, PR, etc gained by your Posts URLs will be transferred to the new URLs.

  2. Post wise redirection:

    Each blog post will be redirected to the respective new URLs.

  3. It is easy to promote a Custom name rather than a .blogspot address

The last point is also very important as the first two points because .blogspot or WordPress addresses are difficult to promote and look unprofessional. There are not many financial troubles associated with buying a new domain name because all you have to spend is around $10 per year as the registration fee.

I bet, any serious blogger can earn more than $10 per year from AdSense through this site. I have been blogging since my college days but after two years from the starting day only, I recognized the importance of having a domain name. Once I bought the address CoreNetwokZ.com, I understood its importance. It gave my blog a professional touch and gradually helped me to increase the visitors' count.

One advantage of starting with Blogspot is the facility to use the custom name even if you are hosting your site on their server. So you can avoid the expenses of buying a server space. Definitely, a custom domain name can make your blog promotion easier. To learn about the promotion, click on the link below.
How to Optimize Blogger Template for better Search Engine Result


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The Connection Has Limited or No Connectivity

If your computer fails to make a proper connection to a network, you may receive an error message Limited or no connectivity: The connection has limited or no connectivity. You might be unable to access the Internet or some network resources. In some cases, it might be a false error report and your computer may access the Internet. But in most cases when you see this error message, your computer will not go online. Though this "Limited or no connectivity" error message is common with a wireless connection, you can expect the same even with a wired connection.


Fix Limited or No Connectivity On a Wireless Computer

In order to resolve limited or no connectivity issue, follow the steps mentioned below.
  1. Refresh the network list and try to reconnect:

    On the taskbar, you can see a wireless icon. Open it and click on view available WiFi broadcasts. Click on refresh and then connect to the available WiFi connections. Make sure you have the correct wireless key in case if it is secured.

  2. Delete preferred wireless profiles and refresh the list:

    In this step, we should clear all previously saved wireless networks on your computer. After removing the saved profiles, click on view available wireless network button to see the currently available WiFi connections. Now try to connect to the available network.

    To get more instructions on how to perform step 1 and step 2, click on the link below.
    My Computer Is Not Detecting Any SSID Broadcasts

  3. Shift to WZC:

    If your computer is using any third party wireless utilities like Dell wireless utility, Linksys WLAN monitor etc, you should disable that program and enable WZC to control WiFi networks.
    Steps to Start Wireless Zero Configuration On Your Computer

  4. Adapter side troubleshooting:

    If you are receiving the error message, Limited or no connectivity: The connection has limited or no connectivity. You might be unable to access the Internet or some network resources, even after following the above steps, there might be some issues with WiFi adapter. Follow the steps mentioned in the link below to troubleshoot it.
    How to Troubleshoot Adapter Related Issues

  5. Router/ Access Point side troubleshooting:

    In this step, we should change SSID, WiFi encryption type and the key and try to connect our laptop to the new connection. Make sure MAC address filtering is disabled.

Solve Limited or no connectivity on Wired Connection

If you see the error message Limited or no connectivity: The connection has limited or no connectivity. You might be unable to access the Internet or some network resources on a wired PC, follow the steps below.

  1. Power Cycle the network:

    To power cycle, the entire network follows the steps mentioned in the link below.
    How to Do Power Cycle

  2. Disable Security software:

    The next possible step we can do is disable all security software products with firewall feature running on your computer.

  3. Re-seat Connection

    If you have access to the entire network, I suggest you unplug each and every Ethernet cables and reconnect them. It will fix any loose connection problems and fix the issue.

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Computer is Online with USB Cable but Cannot with Modem LAN Port

Today I received a call from one of my friends to discuss a strange network issue. He can access the Internet on his computer using USB cable connected to his modem but it is not working when he tried to use Ethernet cable to connect his computer to the modem. His modem has router feature with 4 LAN ports and he decided to use them to connect his second computer. So he removed the USB connection and connected his computer to the LAN port with Ethernet cable. However, his computer failed to access the Internet and he has no clue. This tutorial explains how to deal with such a situation and I tried my best to make it easy to understand and follow.

Online With USB Port But Not With LAN Port

In case if you have troubles to go online when connecting your computer to the LAN port (Ethernet Port) but can go online with the USB port of the modem, follow the procedure below.

  1. Check the LED on your modem And at Computer LAN Port

    If there is no light on your modem (LED near the LAN Port) or at an Ethernet port on the computer, it shows no active connection between your computer and modem. Possible reasons can be;

    • Loose connection- Unplug the cable from both ends and connect back
    • Modem LAN Port issue - connect the cable to another LAN Port
    • Faulty Ethernet Cable - Try a different cable
    • Faulty Computer LAN card

  2. Check Computer IP Address

    If Static IP address is assigned to your computer, you must use obtain an IP address automatically option. It is because if your computer static IP address does not match the network address of the modem DHCP, your computer will not go online.
    How to Set Your Computer to Receive IP Address From Modem DHCP Server

  3. Power cycle the modem

    In this step, you need to disconnect the power cable from the modem and wait for 1 minute. After one minute power on the modem and wait till all the lights are steady.
    How to perform Power Cycle


  4. Uninstall LAN Card Driver and Reinstall

    Corrupted LAN card adapter prevents you from accessing the Internet. You may uninstall the current adapter driver and install the latest version of adapter driver.
    How to Update Adapter Driver

  5. Disable Firewall and check for the issue

    It is advised to disable the firewall protection on your computer and check for the issue.

  6. Connect your computer to another modem

    To rectify the issues with the LAN port of the computer/LAN port of your modem
    either connect a different computer or Laptop to the modem or connect your computer to another modem.


The last step isolates the culprit port. If the issue is with the modem port, you need to contact your ISP. If your computer LAN port is defective, contact your hardware vendor.


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Steps to add Open DNS in Ubuntu Linux

Today I faced some DNS issues with my new computer after installing Ubuntu in it. After some basic troubleshooting steps I assigned Open DNS address to my network adapter and the issue is resolved. Open DNS is a smart way to make our browsing fast and reliable. As the name suggests this DNS service is absolutely free and worth a try. Before go to open DNS we need to know a little bit about DNS. As we know DNS is used to convert the domain name of the website to its IP address. For any communication, your computer should know the mac address and IP address of the destination (Here web server). MAC address can be obtained from the ARP table and if the user types the IP address of the web server computer knows both. If the user types the domain name of the website your computer don't know the IP address of the destination and the communication will not happen. Here the DNS server helps. DNS helps to resolve the domain name to IP conversion issue and send the destination IP address to the computer.


So it is understood that every computer which connects to the Internet should know the DNS server address. There are many DNS servers available including your ISP's DNS server. Here I am presenting the steps to assign Open DNS in Ubuntu Linux.


To know the steps to assign DNS address in Windows computer click on the link below.


How to configure DNS address in Windows computer


Assign Open DNS in Ubuntu

The steps to set open DNS in Ubuntu are:


1. Right click on the network symbol

You can see the network icon on the right-hand top of the screen.
Enable Open DNS in Ubuntu Linux


2. Click on the Edit Connection

3. Now the active network connection window will be opened.

Set Open DNS in Ubuntu

If your computer is connected with an ethernet cable you will get the standard name eth0.

4. Select the connection and click on Edit button


5. On the Edit window click on the IPv4 Settings tab


Edit the connection to set DNS address in Ubuntu



Now on DNS Server enter the Open DNS addresses.

The Open DNS addresses are :

i. 208.67.222.222
ii. 208.67.220.220


Now click Apply and reboot your computer.


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How to Reset or Bypass Forgotten BIOS Password

It is important to prevent others from accessing BIOS(Basic Input Output System) settings on a computer if you want to make it secure. By settings a password for login to BIOS, we can add one more layer of security for our PC. However, one possible issue is you may forget the password you set and prevented from accessing the Basic Input Output System settings. This tutorial explains how to reset BIOS password configured on a computer. There are three methods to reset the data you set for it and they are given below.
  1. Using BIOS backdoor passwords set by the manufacturer

  2. Using BIOS password breakers (Third-party Software )

  3. Hardware Reset


BIOS Backdoor Passwords

This is the easiest method to reset Basic Input/Output System information set on a computer. You can use the dummy or preset backdoor login code provided by manufacturers to bypass the BIOS login code you set on your computer. It is important to know that, you must be patient enough to find the correct backdoor code suited for your PC. One of my earlier posts has a huge list of such information and I hope you will find it helpful. To see a list of backdoor details, visit the link below.
Common Basic Input/Output System Default Backdoor Code Set by Manufacturers


Third Party Tools to Break BIOS Password

If the first method failed, you can use reputed third party software tools to break the password you set. Here you can see a list of widely used tools to break Basic Input/Output System password of any models of computers.

  • http://www.11a.nu/software/bios-pc-bios-security-and-maintanance-toolkit/

  • http://www.cgsecurity.org/wiki/CmosPwd

  • http://webscripts.softpedia.com/script/Development-Scripts-js/Complete-applications/Cmos-Password-Breaker-15153.html

  • http://wareseeker.com/free-cmos-password-breaker/



Hardware Reset to Bypass BIOS Password

The one of the good and dirty way to reset Basic Input/Output System login is hardware reset. To perform a hardware reset, follow the steps below.
  • Power off your PC

  • Open Computer cabinet

  • Disconnect CMOS battery from the motherboard

  • Wait at least one minute and reconnect the CMOS battery

  • Reboot your computer to login BIOS
Basic Input/Output System information is stored in CMOS memory and when the power to CMOS is disconnected, stored information will be erased. So on next system boot, BIOS will not ask your password. So be happy because forgotten BIOS password cannot deny your entry to Basic Input/Output System settings on your PC anymore.

Further Readings
  1. How to Reset Current Basic Input/Output System Configuration On My Laptop?

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  3. How to Check Laptop Memory Problems Using Windows Memory Diagnostics Tool

  4. How to Hide Hard drive From My Computer Drive List

How to Disable or Enable USB Ports from Registry & BIOS On a Computer

USB (Universal Serial Bus) is one of the important methods to send or receive information from a computer. In order to improve the safety of information stored on a PC, it is good to disable Universal Serial Bus for unauthorized users and it is a simple task if you have admin rights. In this tutorial, I would like to share one method to disable and enable them on a PC from the registry. Since registry editing is a sensitive task, I would like you to follow the steps carefully and strongly recommend you to take a registry backup before proceeding. If you are not the only admin of your computer, I recommend you to follow the BIOS method to block Universal Serial Bus on your computer. Steps to block them from BIOS are listed at the end of this tutorial.


Steps to Disable USB Ports from Registry

Steps to deactivate them on a PC from Windows registry are:
  1. Click on start
  2. Type regedit on Run window or Search and press enter. Now the registry editor opens
  3. Navigate to the following registry path
    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\UsbStor
  4. Click on UsbStor and a list of attributes will be displayed on the right panel

    Disable USB Port on your computer
  5. Double click on start and set the hexadecimal value to 4 and click OK

Now the Universal Serial Bus on your PC is disabled. If you connect any USB device, your computer will not recognize them.

How to Enable USB Ports On Your Computer from Registry

To do this you need to follow the steps 1 to 4 and set 3 as the hexadecimal value for start. This will reverse the effect.

Disable USB Ports From BIOS for Other admins

As I explained before, to block Universal Serial Bus for other admins on your PC, you must deactivate it from BIOS. Disable the USB ports from BIOS and set a password for BIOS to prevent other admins to reverse the restriction. Here I assume other admins cannot remove and replace the CMOS battery to reset BIOS password.

To block Universal Serial Bus for other users with administrative privilege follow the steps below.

  1. Reboot your computer

  2. Press [F2] or [Del] as told in the motherboard manual while booting your PC

  3. Enter BIOS by entering BIOS password

  4. Select Advanced

  5. Select USB Configuration and press enter

  6. Select the option to disable

Enable USB Ports From BIOS

To enable Universal Serial Bus on your PC you need to enter BIOS and enable the USB Ports. The steps are the same except the last step. We need to enable them from the disabled state.

The above tip completely disables Universal Serial Bus on your PC but if you want to disable only writing files to devices connected to the USB ports of your computer, follow the steps provided in the link below.
How to Disable Writing files to USB Drives Connected to Your Computer

Sometimes due to various reasons registry editor may be disabled on your laptop. In that scenario, you cannot disable Universal Serial Bus on your laptop unless you need to unlock registry editor. To perform this follow the steps provided in the link below.
How to Enable Disabled Registry Editor on Your Computer

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Check Frequency of RAM Module On Your PC With Specifications

While counting the performance of a personal computer, Random Access Memory (RAM) has a very important place. It helps to improve the data transfer rate between hard disk and processor by acting as a buffer. Major portions of processes and files required for software while running on a computer are stored in it and provides them whenever the processor asks for it. So it reduces the time taken to fetch data from slower hard disk to processor while running a program. The speed of Random Access Memory depends on frequency and memory size. This guide explains how to check the frequency of a RAM module installed in a PC.

How to Check the speed/Frequency of RAM

If you do not know the speed of RAM module installed on your PC, you can find it by any one of the methods given below.
  • From the label

  • From BIOS

The first place I recommend you to look for this information is the label attached to it. You will get most of the necessary information like RAM manufacturer, frequency etc. If you are unable to get information from the label, you can get the details from the BIOS. To log on to BIOS press [F2] or [Del] { Depends on the computer manufacturers, the key to enter BIOS may change} while booting your computer. On the main page of BIOS itself, you can get the Random Access Memory details like the slot where it is inserted, Size of the module, Frequency /Speed etc. To get all information related to the RAM module inserted on your laptop from BIOS settings, follow the steps below.

  1. Reboot your laptop

  2. Press [F2] or [Del] as told in the motherboard manual

  3. Enter BIOS

  4. Get the necessary details from the main page itself

Different Types of RAM Modules
  1. SD

  2. DDR1

  3. DDR2

  4. DDR3

Points to Remember While Buying Random Access Memory Modules

  1. Certain motherboards do not recognize certain RAM modules. So check the compatibility before buying it

  2. If you want to add an extra module to your PC, make sure the new Random Accessory Memory module has the same frequency of the existing module.

  3. After all, it is important to know the warranty period of RAM. Some vendors offer one year warranty while others offer three years. It is better to go with products offer higher warranty period.

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Save a Webpage On Google Chrome Browser

Bookmarking helps to save the interesting web pages on our computer for future reference. This feature is very helpful because users can come back later and continue reading the interesting page by opening previously saved bookmarks if they don't have enough time to read right now. You can bookmark an interesting webpage either on the browser itself or on a third party website which supports this facility. This tutorial explains the bookmarking feature on Google Chrome browser and the different methods to remove any unwanted previous entries.


How to Save a Webpage On Chrome

To save an interesting webpage on Chrome browser, you may follow the steps below.
  1. From 'Customize and Control'

    • Click on 'Customize and Control' Button

      Once you are on the page which is needed to be saved, click on 'Customize and Control' button on the right-hand top. It is important to make sure while pressing this button, you are on the right page to save.

    • Click on 'Bookmark this page' from the menu
      save a page

  2. Shortcut Keys

    You can also save a specific webpage on Google Chrome by pressing the two buttons at the same time. The shortcut keys to press are: [Ctrl] and [D]. In my personal opinion, I prefer to use this keyboard shortcut to save a preferred page.

View Saved Bookmarks

You can view all saved web pages on your Google browser by either GUI method or by shortcut keys.
  1. Key shortcut

    To view the bookmark manager, press [Ctrl] [Shift] and [O] buttons together. It will open a new window where you can manage and view all saved bookmarks.

  2. GUI

    Click on 'Customize and Control' Button and open Bookmark Manager. Here all the saved entries are listed.


Delete Saved Bookmarks

People lose interest over time. In case if you want to remove some of the previously saved web pages from Google Chrome browser, it is very easy to do. Following steps explain how to delete saved bookmarks from Chrome browser.
  1. Open Google Chrome

  2. Click Customize and Control button

  3. Open Bookmark Manager

    You can directly access the same bookmark manager by pressing [Ctrl] + [Shift] + [B] keys together. In the book manager window, you can see all the saved bookmarks on Chrome.
    remove

    To delete an entry, select the item and press delete button on your keyboard. If you want to delete the all entries you may press [Ctrl] and [A] button together and press delete button. Then all the saved bookmarks will be removed from the Google Chrome browser.

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Change Default Windows Logon Background Color from Registry

Which background color your computer uses for the Windows Login screen? If you are not happy to see the default one set on your computer for the Windows login background screen, you can change it with any color you prefer. There is a registry tweak to change the background color of Windows login screen and that is explained in this tutorial. To continue the steps provided in this tutorial, you must log in to your computer using an administrator account. If you are using a different User profile without administrative privilege, you cannot change the settings mentioned in this tutorial.

Edit Windows Login Screen Color

  1. Open Run Window

    Press [Windows] and [R] button together to start Run window. On the run window, type regedit and press enter button.


  2. Backup Current Settings

    Before changing any reg settings for the login screen, it is better taking backup of the current registry settings as a precaution to counter any possible mistakes while editing the registry. To learn how to perform it, visit the link below.
    How to Backup Current Microsoft OS Registry Settings

  3. Go to Registry Windows Color Settings

    Navigate to the following registry value

    HKEY_USERS\.DEFAULT\Control Panel\Colors Now you can see a lot of attributes here.

  4. Double click on Background
    How to change Logon backGround

  5. Enter the Code of Your Desired Color

    Under, value data, you can see the current color set for the Windows Login screen. It is in the format X X X and where X can be any number between 0 and 255. These numbers show the pixels to determine the color. The basic code is like:

    Red: 255 0 0
    Green : 0 255 0
    Blue : 0 0 255
    Black : 0 0 0
    White: 255 255 255

    You can get any color by changing the pixel count.

After saving the registry settings with the custom color code for Windows login background screen you may need to reboot your computer to check the result. If you do not like the changes you have made, you can reverse the changes by following the same procedure.

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My Laptop is Not Getting Wireless Signals and Internet

Today one of my clients called me while I was waiting online for him. He informed he couldn't come online because there are some issues with WiFi connection. He was sitting at a Hotspot but his Laptop failed to get wireless signals and mot online. He knows I am a network engineer and asked me to help him to resolve the issue. It was not a big issue and I fixed that without taking much time. Then I realized, for a nontechnology person, even smaller issues can be big and ruin his day. So I would like to share some tips to troubleshoot your laptop if you are facing troubles with getting signals or Internet connectivity.


No WiFi or Internet On Laptop

You do not need to go for assistance from expert or hardware vendor in case if your laptop stops receiving signal. You may just go through the guide below and I am sure in 99 percent cases you can fix it by yourself.
  1. Wireless Button should be turned on

    Make sure the wireless button on your Laptop is turned on. If it is off, your laptop will not receive the signal from Access Point. The wireless button can be present on the top or side panel based on the models. For different vendors like Dell, Toshiba, Samsung etc. WiFi button might be placed in a different location. It can be distinguished with the WiFi symbol. For more details I recommend you to refer the user manual of the Laptop.

  2. Make sure WZC is started

    Wireless Zero Configuration (WZC) is a service which is essential to receive wireless signals on your computer. To know how to check the status of WZC and how to turn on click on the link below.
    How to start WZC on your Computer

    WZC is on Windows XP but for higher versions, you must check for WLAN AutoConfig in services page. To get instructions to start this service, I recommend you to go through the link below.
    How to Start WLAN AutoConfig

  3. Clear All Previous Network Details

    You may clear the previously saved network lists from your PC and refresh the network. Your computer may start receiving signals from Access Point. to learn more about it I recommend you to click the link below.
    My computer is not detecting any WiFi signals - Part 1

  4. If the issue persists even after performing the steps provided in the above link, you need to disable the Firewall on your Laptop. After disabling the firewall check for the issue. Even if you are not able to detect any wireless signals I suggest you follow the steps provided in the given link.
    I am not getting WiFi even after I disabled the Firewall

Some users may find issues with following step 2 because vendor provided wireless utilities might be running on their computers. For example, the Dell WiFi utility. Sometimes this tool acts strange and shows issues with receiving signals from access point and routers. In that case, you may disable or uninstall that tool and try the Microsoft Windows utility (WZC for Windows XP and WLAN AutoConfig for Vista, Windows 8 and 7).

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Disable iPod Service On Windows Computer

The iPod Service is a third party service which is supplied by Apple to run iPod on your Windows computer. When you connect an iPod to your PC, it will be detected using it. Its description itself says "iPod hardware management services". It is installed on your computer automatically while you install QuickTime or any other apple products. Another chance is the installation of Apple's iTunes music software. If you don't use this apple device, it is advisable to disable it as it consumes a lot of startup time.

Path of iPod Service on Windows Computer is "C:\Program Files\iPod\bin\iPodService.exe" but it is highly recommended to don't uninstall it as it is used for the smooth working of other Apple products on a PC.

Steps to disable iPod Service On Windows Computer

Since the installation is not recommended, you may disable it to fasten the start-up time of your laptop. Steps to disable it are provided below. It is important to note that the procedure is different for Windows 8, 7 Vista and XP computers.

  1. Windows 8

    • Type Services on the Search box

    • Click "View local services"

    • Choose iPod Service, and click "Stop the service."
    • Vista and 7

      • Type services on the Search box

      • Go to Services and select iPod Service

      • Double click on it and click the stop button

    • XP Computer

      • Click on start

      • Go to Control panel and open Administrative Tools
        Apple

      • Click on Services

      • Find iPod Service and right click on it
        how

      • Click on Stop to disable the service on your computer.

    After effects

    After completing the procedure, you may not be able to watch *.mov files or another video on websites that need QuickTime to run. Another issue is the problem to connect iPod to your PC without restarting the service by following all the steps provided. Once it is restarted, you will not find any issues with playing QuickTime videos on your PC.

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    Some crazy DNS issue by My ISP

    Today I faced an interesting DNS issue with my Internet Service Provider. The issue is very simple I can go online but ping request to open DNS server returns request timed out. It is very interesting, right?

    The complete story is like below. While browsing I suddenly went offline and as usual to check the connectivity I ping to global DNS address. I got Request Timed Out message. So desperately I tried other open DNS addresses like 208.67.222.222 and 208.67.220.220 but they too failed to get a valid reply. Then I just ping www.google.com and it gave me to reply and my browser can go to google.com.

    Screenshot of my ping operation is attached below.

    Crazy DNS issue by my ISP where I am online but cannot ping global dns


    After the result, I again ping 4.2.2.2 and got Request Timed Out message. Meantime I can browse to any website without any issue. I called the ISP and asked what is the actual reason for this issue. After some escalation (Normal procedure :-) )
    they told me it was their server mistake and it is corrected now.


    Solution to DNS issues from ISP

    In case if your ISP's DNS server is not working or not up to full satisfaction we can use open DNS address on your computer. The open DNS addresses are

    208.67.222.222
    208.67.220.220

    Steps to assign open DNS in Ubuntu Linux


    RPC Server is Unavailable While trying to Renew IP Address

    Yesterday I faced a strange issue while trying to access the Internet and I failed to go online. There was no connection to the wireless network and I started troubleshooting the issue. When I type ipconfig on command prompt as the first step in every network troubleshooting, I received the IP address 0.0.0.0 instead of a valid IP address. I tried to renew the IP address by typing ipconfig/renew but failed with the following error message...


    "No operation can be performed on Local Area Connection while it has media disconnected. An error occurred while renewing interface wireless network connection. The RPC server is unavailable ".


    So the process was like this

    1. Check the IP address on command prompt by typing ipconfig

    Result. IP address ----> 0.0.0.0

    2. Renew the IP address by ipconfig/renew

    Got the error message which says RPC server is unavailable.


    The steps to fix the issue RPC server is unavailable



    The reason for this error message "The RPC server is unavailable is the Remote Procedure Call server can't be located. It means the server service is not yet started and to fix the error we need to start the RPC server.

    Steps to start RPC server

    The steps to start the Remote Procedure Call server are:

    1. Click on start and go to the Run window

    2. On Run type services.msc

    Now the services window will be opened.

    Solution to the issue RPC server unavailable


    3. Start Remote Procedure Call service

    We do it by right click on the service and click on start.

    4. After starting the RPC server service we need to restart the computer. After restarting the computer the issue will be fixed.


    Update

    If the issue persists, you should perform a system restore and check for the issue.

    PS: Recommended by a reader (Farhan)

    To read more about RPC server and RPC authentication, follow the link below.

    What is RPC (Remote Procedure Call ) and RPC Authentications


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