I want to block other computers in my home from using the network at certain times of the day when I am out. I gave my pc a fixed ip address of 192.168.2.11 and blocked addresses 192.168.2.2 to .10 but my pc also stopped working. Why?

<p>Some Time Network trouble shooter faced some problem in but they can't solve out where is the exact problem. Yes it create critical situation some time to find out where the problem is. In windows based OS have a feature to take out problem. Network trouble shooter is the feature where we can recognise the trouble of hardware, software or network. Here I will describe about <span>how to troubleshoot a Windows XP-based home network. Usually it will describe also about a network structure, how to use the Home and Small Office Networking Troubleshooter, and how to troubleshoot basic connectivity, and how to resolve file and printer sharing issues. If you have problems with your home network, follow the steps in this article to help isolate and troubleshoot the configuration of your home network's basic connectivity, and file and printer sharing. First, try to identify and resolve the issue by using the following steps. </SPAN><br> <p><span><span> </SPAN></SPAN>At <span>first you have to know the kind of network structure that using there. If you are not sure, go to the "Home-network structures and their configurations" section. To identify the problem first </SPAN><span>Click starts and then click </SPAN>Help and Support<span>. </SPAN><span><span> </SPAN>After that </SPAN><span>Pick a Help Topic, click Networking and the Web. </SPAN><span><span> </SPAN></SPAN><span>Under Networking and the Web, click Fixing networking or Web problems, and then click Home and Small Office Networking Troubleshooter. </SPAN><span>Answer the questions in the troubleshooter to try to find a solution. </SPAN><span>Before you troubleshoot home networking issues, first determine the network structure you are using. The network structure is the arrangement or mapping of network elements such as links and nodes, and the physical connections between them. There are several common home-network structures.</SPAN><br> <p>If in that Lab the computers are connected to a hub, where only one computer has Internet connection shared by using Internet Connection Sharing<b><span>.</SPAN></B><span> </SPAN><span>In this configuration, the computer that shares the connection generally assigns IP addresses to other computers on the home network. The computer that is sharing the connection will have IP address 192.168.0.1 configured for the adapter that is connected to the home network. Other computers on the network will have addresses in the range 192.168.0.<span>x</SPAN>, where <span>x</SPAN> is a number between 2 and 254.</SPAN><br> <p><span> </SPAN>If t<span>he computers are connected to the Internet</SPAN> through a broadband connection, then<b><span> </SPAN></B><span>this configuration is also known as an edgeless network. In this configuration, the computers on the home network each have an IP address that is provided by the Internet service provider (ISP). The addresses that are used vary, depending on the ISP. </SPAN><span></SPAN><br> <p><span>So Network trouble shooter is very useful and easiest process to identify or troubleshooting a network problem.</SPAN>

An IP address conflict occurs when two computers on a LAN or the Internet have been assigned the same IP. IP conflicts between two computers normally render either one or both of them unusable for network operations.

How IP Address Conflicts Happen

Two computers can acquire conflicting IP addresses in any of several ways:

· A system administrator assigns two computers on the LAN the same Static IP Address.

· A system administrator assigns a computer a static IP address within the local network's DHCP range (dynamic IP range), and the same address is automatically assigned by the LAN DHCP server.

· A malfunction in the network's DHCP server allows the same dynamic address to automatically be assigned to multiple computers.

· An ISP accidentally assigns two customers the same IP address (either statically or dynamically).

· A mobile computer is put into standby / hibernate mode and then awakened later.

Note that other forms of IP conflicts can also occur on a network. For example, one computer may experience an IP address conflict with itself if that computer is configured with multiple Network Adapters. System administrators may also create IP conflicts by accidentally connecting two ports of a network switch or router to each other.

Recognizing IP Address Conflicts

On most Microsoft Windows computers, if you attempt to set a fixed (static) IP address that is already active on the local network, you will receive the following pop-up error message:

The static IP address that was just configured is already in use on the network. Please reconfigure a different IP address.

On newer Microsoft Windows computers having dynamic IP conflicts, you should receive a balloon error message in the Taskbar as soon as the operating system detects the issue:

There is an IP address conflict with another system on the network.

Sometimes, especially on older Windows computers, a message similar to the following may instead appear in a pop-up window:

The system has detected a conflict for IP address...

On Mac or Linux computers, a similar message will normally appear on screen.

Resolving IP Address Conflicts

Try the following remedies for IP conflicts:

1. For networks where IP addresses are fixed (statically assigned), ensure each local host is configured with a unique IP address.

2. If your computer has a dynamically assigned address, releasing and renewing its IP address can workaround IP address conflicts.
3. If your home router is believed to have a faulty DHCP server causing IP conflicts on the home network, upgrading the router firmware may resolve this problem.