Diagnosing and resolving internet connection problems


Because of the many interdependencies between services, protocols, and configuration settings, troubleshooting network problems can be difficult. Fortunately, Windows Server 2008 includes a powerful network diagnostics tool for pinpointing problems that relate to the following:

  • General network connectivity problems
  • Internet service settings for e-mail, newsgroups, and proxies
  • Settings for modems, network clients, and network adapters
  • DNS, DHCP, and WINS configuration
  • Default gateways and IP addresses

To diagnose internet connection problems, follow these steps:

  1. Click Start and then click Network. In Network Explorer, click Network and Sharing Center on the toolbar.
  2. Click Diagnose And Repair.

Windows network diagnostics will then try to identify the problem. If identifiable configuration problems exist, a list of possible solutions is provided. Some solutions provide automated fixes that you can execute by clicking the solution. Other solutions require manual fixes, such as might be required if you need to reset a network router or broadband modem. If your actions don't fix the problem, refer to other appropriate parts of this troubleshooting section.


If you are a home user and you are using Broadband Connection check the following things.

1. Check your phoneline is working perfectly. If there is noice or any other interruption then the data will not flow correctly.

2. If you phone is working then check the modem, it's power is on and the powe indicator is display status.

3. After the power on the ADSL Modem a few seconds the ADSL LED is going to blink and later it is steady and the Internet indicator is started blinking.

4. If the ADSL blinking is not steady then it should be the problem of telephone line or from Servicr Provider. You must contact the service provider to solve this issue.

5. If Both ADSL is steady and internet/data led is blinking but not shows webpage then you check the LAN LED is blinking or not. If you are using a wireless lan then check the status of wireless led. (You can enable or desable wireless in your modem reading the manufacturers user manual. If you using wireless you should enable passwords and encryption to prevent unauthorised users accessing your network.

6. If the LAN LED is not blinking then you should check the cable connected to the computer and NIC card is working correctly.

7. If all things are fine and If you have a prepaid internet account then you should check the validity and balance.

8. If you have using ADSL splitter then check the cables plugged in the correct port or not.

Line: The telephone line

Phone: To telphone

ADSL: to Modem

You can directly plug the telephone line into the ADSL modem for checking the splitter is faulty

If you are using a dialup connection then check the username and password.

If you are using automatic mode then create a dialup using following steps.


Configuring Dial-Up Connections

  1. Click Start, click Control Panel, and then click Network and Internet Connections.
  2. Click Create a connection to the network at your office.
  3. In the Location Information dialog box, enter the appropriate information. Click OK, and then click OK to close the Phone and Modem Options dialog box and start the New Connection wizard.
  4. In the New Connection Wizard, click Dial-up connection, and then click Next.
  5. Type a name for the network to which you are connecting (such as "My Office Network"), and then click Next.
  6. Type the phone number for the network to which you are connecting, including, if necessary, the area code and "1" prefix.
  7. Specify whether you want this connection to be available for anyone's use, meaning for any user on this computer, or for your use only, meaning only for the user who is now logged on.
  8. Specify whether you want a shortcut to the connection on your desktop.
  9. Click Finish.

Using Dial-Up Connections

  1. Click Start, click Connect To, and the click the connection that you want to use.
  2. In the User Name box, type your user name.
  3. In the Password box, type your password.
  4. Choose one of the following options:
    • To save the user name and password so that you will not have to type them in the future, select the Save this user name and password for the following users check box.
    • If you want only the current user to have access to the saved user name and password, select the Me only check box.
    • If you want all users to have access to the user name and password, select the Anyone who uses this computer check box.
  5. Click Dial.


1. Open Internet Explorer.

2. Tools menu Internet Options. (If toolbar is not visible then press Alt+T keys simultaniously)

3. Click Connections Tab in the top of the dialog Box.

4. Look for "To setup an Internet Connection click Setup" and a button with Setup is shown top, click on the button to start the wizard.

5. Click Next Button.

6. Select Connect to the Internet and Click the Next button.

7. Select Set up my connection manually and Click the Next button.

8. If you are using a dialup Select Connect using a dial-up modem go to 11 otherwise Select Connect using a broadband connection that require a username and password and click next.

9. Enter the Connection name whatever you want, Click Next.

10. Enter Username and Password Click Next and Click Fininsh to complete Seting up a dialup connection.

11. In the ISP Name field, type a name to identify your connection (eg. BsnlNet).
Click the Next button.

In the Phone number field, type your local access number exactly as it needs to be dialed.

Note: If you require 10-digit dialing in order to access a local number, make sure to include your area code.
Click the Next button.

In the User name field, type your email address.
In the Password field, type your password.
In the Confirm password field, type your password.
Uncheck the box next to Use this account name and password when anyone connects to the Internet from this computer.
Uncheck the box next to Make this the default Internet connection.
Uncheck the box next to Turn on Internet Connection Firewall for this connection.
Click the Next button.

Check the box next to Add a shortcut to this connection to my desktop if you wish to have a shortcut to the connection on your desktop.
Click the Finish button.


1. Check the range indicator for the correct connectivity. You need at least 40% range for good reception.

2. If you have good range then check the validity of your connection. If prepaid check the balance.

3. You have enough balance and you are in the validity peroid.

4. Remove the datacard and uninstall the software completly and restart the computer.

5. Reinsert the datacard and istall the software correctly and try again.

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