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If you can't able to open windows XP network, first open the Network troubleshooter by right-clicking the network icon in the notification area, and then clicking Troubleshoot problems. If running the Network troubleshooter didn't solve the problem, then follow the steps described in Network connection problems in Windows If the steps in that topic didn't help, then follow these steps: If you're on a home network with a homegroup, and you're trying to connect to another computer, make sure that computer is on and that it has been added to the homegroup. If you're on a home network without a homegroup, and you're trying to connect to another computer, make sure that computer is on and that you've enabled file and printer sharing on your network. For more information, see Networking home computers running different versions of Windows. Make sure that all wires are connected (for example, make sure your modem is connected to a working phone jack or cable connection, either directly or through a router). If the problem began after you installed new software, check your connection settings to see if they've been changed. Open Network Connections by clicking the Start button , and then clicking Control Panel. In the search box, type adapter, and then, under Network and Sharing Center, click View network connections. Right-click the connection, and then click Properties. If you're prompted for an administrator password or confirmation, type the password or provide confirmation. Check your router. Because of the new networking features in Windows Vista and Windows 7, some older network routers are not fully compatible with these versions of Windows and can cause problems. You can test your router to see whether it's fully compatible by running the Internet Connectivity Evaluation Tool online. Or, for a list of routers that are compatible with Windows Vista and Windows 7, go to the Windows Compatibility Center website. Some times Network discovery is turned off also cause a problem to enter network. Network discovery is off by default for Public networks. Changing a network location type to Home or Work is the easiest way to turn on network discovery. To learn how to change a network location type, see Choosing a network location. To turn on network discovery manually, follow the steps below. To turn on network discovery Open Advanced sharing settings by clicking the Start button , and then clicking Control Panel. In the search box, type network, click Network and Sharing Center, and then, in the left pane, click Change advanced sharing settings. Click the chevron to expand the current network profile. Click Turn on network discovery, and then click Save changes. If you're prompted for an administrator password or confirmation, type the password or provide confirmation. Regarding can't able to open wireless network: Open Connect to a Network by clicking the network icon ( or ) in the notification area. If Windows doesn't detect a network that you think is in range of your computer, it could be because of one the following reasons: The wireless switch on your computer is turned off. Many laptops have a wireless switch on the front or side of the computer. If your computer has a switch, make sure it's turned on. Some computers also use a function key combination to turn the switch on or off. Check the information that came with your computer for details on locating the wireless switch. Your computer is too far from the wireless router or access point. Move your computer closer to the router or access point. If the computer is portable, try moving it around to determine the range of the wireless signal and the best place to use the computer. If you can't get closer to the router or access point, consider buying and installing an external antenna for your wireless network adapter. Many wireless network adapters are set up so that you can attach an external antenna to them, which provides better reception than a built-in antenna. Check the information that came with your wireless network adapter to see if you can install an additional antenna. The wireless router or access point is turned off or isn't working properly. There are two things to try: Make sure the router or access point is turned on and that the wireless signal light is illuminated. Reset the router or access point by unplugging it, waiting at least 10 seconds, and then plugging it back in.
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