HP L1711 PDF

This document describes how to diagnose and troubleshoot your wireless network problems. The following sections provide detailed explanations of the troubleshooting process and corrective actions. Identify the network connection problem When troubleshooting a computer that cannot connect to a wireless Wi-Fi network or the Internet, do the following: To check the status of the computer, the network, and the Internet connection, right-click the Network Connection icon in the notification area, and then click Network and Sharing Center. A yellow exclamation symbol indicates there is a problem with the connection. A red X indicates there is no connection.

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This document describes how to diagnose and troubleshoot your wireless network problems. The following sections provide detailed explanations of the troubleshooting process and corrective actions.

Identify the network connection problem When troubleshooting a computer that cannot connect to a wireless Wi-Fi network or the Internet, do the following: To check the status of the computer, the network, and the Internet connection, right-click the Network Connection icon in the notification area, and then click Network and Sharing Center.

A yellow exclamation symbol indicates there is a problem with the connection. A red X indicates there is no connection. This information changes as the network status changes. Figure : Network status note: Click the yellow exclamation symbol for additional status information. In the following table, identify the connection problem and select the one that most closely describes your problem.

Red X between the computer and the Internet. The home wireless network is not set up or the wireless router is off or frozen. Go to the Wireless network is not set up section Yellow exclamation between the computer and the network. The computer was connected to the home wireless network in the past, but suddenly it cannot connect to the home wireless network or has a limited access message. Go to the Cannot connect to an existing wireless network section.

Red X between the network and the Internet The computer has been connected to the home wireless network in the past, and it did have access to the Internet, but suddenly it cannot connect to the Internet even though it can connect to the wireless network. Go to the Can connect to the wireless network but not to the Internet section.

Slow connections, or dropped frames in live television. The computer is connected to your home wireless network and you have access to the Internet, but the connection is slow or dropped. Go to the Slow or dropped connections section. Cannot share files with another computer on the network. The wireless network is working correctly but you cannot access files on another computer on the network.

Go to Wireless network is working but you cannot share files with another computer. Wireless network is not set up Reset the wireless router by turning it off, unplugging it from power, waiting 5 seconds, and then plugging the power back in.

If networking is not restored, check the cable and go through the setup process. You have not set up your home wireless network, or you tried setting it up but the computer has never been able to connect to that network. In the Network and Sharing Center, click Set up a connection or network and follow the instructions.

Cannot connect to an existing wireless network The computer has been connected to your home wireless network in the past, and had access to the Internet, but suddenly it cannot connect to the wireless network or has a limited access message. Perform each step and test the connection. If the problem is not fixed, continue to the next step. Step 1: Check the wires Use the following steps to verify that your modem, adapter, and router and access points are turned on and connected correctly.

Check your cable or DSL modem for disconnected cables or wires. Make sure the power cable is connected and the lights are on. Make sure that the wireless router is connected to the power adapter and modem.

Make sure the lights are on. Reseat all the cables, turn the power off, and then back on to power cycle both the modem and access point or router. It might take 30 to 60 seconds to re-establish a wireless connection. Step 2: Run the Vista diagnostic tool Vista monitors the network and Internet connections. If it detects a problem, Windows Vista displays a no connection or limited connection message, and prompts you for permission to diagnose the problem.

Click OK to allow Vista to diagnose the problem and restore the connection. To run the diagnostic tool manually, use one of the following options: No error message is displayed, but there is no Internet connection: Right-click the Network Connection icon in the notification area and click Diagnose and repair from the menu.

Allow Windows to repair and reestablish the connection. In the Network and Sharing Center, click Diagnose and repair in the left pane. Read and respond to the windows that open. Figure : Diagnose and repair in the Network and Sharing Center Step 3: Make sure the wireless network connection is enabled The connection to a wired or wireless network can be disabled or enabled.

To verify the status: Right-click the Network Connection icon in the notification area and click Network and Sharing Center in the menu. Check that the wireless network is disabled. Figure : A disabled wireless network To enable the network, right-click the connection, and click Enable. It might take a few seconds to enable the connection. Step 4: Make sure the computer is connected to the correct network If the computer has been connected to a network it has already detected in the past, it tries to reestablish the connection.

However, that connection might not be the correct network. To determine which network the computer is currently connected with and to select the network you want to use, do the following. Right-click the Network Connection icon in the notification area. Click Network and Sharing Center in the menu. Figure : Network Connection menu The Network and Sharing Center opens and displays the name of the network s and the types of connections. If the desired network is listed, but not connected, select it and click Connect.

If the computer is connected to the wrong network, click Disconnect. Then select the desired network and click Connect. To prevent the computer from connecting to that network in the future, click Manage Wireless Networks.

Right-click the network you want to change and click Properties. Remove the automatic selection option and click OK to accept the change. Step 5: Minimize interference and move the computer closer to the router A wireless network router has a limited broadcast range.

The further the computer is from the router, the weaker the broadcast signal. Solid objects, such as walls, metal furniture, and electrical appliances might interfere with the signal and decrease the usable range. For testing purposes, move the computer closer to the router and minimize interference from electrical devices. If testing the connection with the computer near to the router proves that the wireless connection is working, you can move the computer to determine the range of the connection.

To extend the usable range of the wireless network router, consider purchasing a different antenna from the router manufacturer, or use a signal repeater. If the test fails with the computer and the router in the same room, continue to the next step to force the device to re-establish all connection values. Step 6: Disconnect from the network and manually re-connect A common problem with a lost connection or poor network connectivity is accidental connection to the wrong network.

It is possible to connect to a network that does not actually exist. For instance, an interruption in the power to a router or a modem, or a momentary loss of signal from the ISP. These types of problems can be resolved by disconnecting from the network router and manually reestablishing a new connection. Use the following steps to disconnect from a wireless network, and then search for, and manually re-connect to the desired wireless network. Right-click the Network Connection icon in the notification area and click Network and Sharing Center.

Then click Network and Sharing Center in the Programs area. In a few moments the wireless networks disappear from the display.

In the Network and Sharing Center window, click Set up a connection or network in the left pane. If the problem is an incorrect password or key index, this option reconnects with the wrong information.

Figure : Set up a connection or network In the Choose a connection option window, select Manually connect to a wireless network, and click Next. Figure : Manually connecting to a wireless network Type the required wireless network information, and then click Next. Network name Security type. The information just entered replaces the previous values that are causing the connection problem. Select the desired network, and click Connect.

After a few moments a message displays indicating that the computer is Successfully connected to the network. After the connection is made, place the mouse pointer over the network icon in the notification area to verify the Name, Speed, Strength, and Status of the connection. If the connection is weak or slow, see Minimize interference and move the computer closer to the router.

Step 7: Reset the power to the network router and the ISP or DSL modem When a computer establishes a connection with a router or with the Internet it uses several IP addresses to manage the communication. If the electrical power to the computer, the router, or the Internet service is interrupted momentarily, the IP address might change and disrupt the connections. The indicator lights on the equipment might indicate that a connection exists, but all the IP addresses might not agree. To reestablish the correct IP addresses, reset the power as follows: Completely shut down the computer.

Click Start , and click the Arrow button. Wait 30 seconds before continuing. Reconnect the power to the modem and allow it reestablish a connection to the ISP. Reconnect the power to the router and allow it to reestablish the connections to the modem and other components. Turn on the computer and allow it to reestablish the IP address connections to the router and the modem. Step 8: Connect the computer directly to the network router using an Ethernet cable By connecting the computer directly to the network router using an Ethernet cable, you can determine if the connection problem is with the router settings or with the wireless signal.

Move the computer closer to the router if needed and plug an Ethernet cable into the network port on the computer and one of the available ports on the router. Right-click the Network Connection icon in the notification area, and select Network and Sharing Center. The window displays the name of the network s and the types of connections.

Select Manage network connections. Check the status of the wired network.

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