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I would go to add/remove hardware and uninstall the wireless hardware and purchase a USB wireless connector the same make as you wireless router and let windows control the connection instead of pushing a bad position.
At times after you have entered the correct password for the wireless network on your computer you are unable to connect to the wireless network and see the below mentioned errors:<br /><br />
<li>"Windows was unable to find a certificate to log you on to the network." </li>
<li>"Validating identity" replacing the name of the wireless network. </li>
<li>A pop-up window requesting for login credentials off the wireless connection. </li></ul><br />To avoid these error messages, you need to manually create or add a wireless network profile. Follow these steps to manually add a wireless network on Windows XP and Vista computers. <br /><br /><span>Manually add a wireless network on a Windows Vista computer:</span><br /><br />
<li>Click Start, and then select Network. </li>
<li>Select Network and Sharing Center.</li>
<li>Click Manage wireless networks.</li>
<li>Click Add and select Manually create a network profile.</li>
<li>Type the SSID, select the type of security and type the wireless password in the Security Key/Passphrase field. </li>
<li>Select the Start this connection Automatically and Connect even if the network is not broadcasting check boxes. </li>
<li>Click Next and close the window.</li>
<li>Go to the Network and Sharing Center and select Manage network connections.</li>
<li>Right click on Wireless network connection and then select Status. </li>
<li>Click details and check the IPv4 address. </li>
<li>If there is a valid IPv4 address, check if the computer can access the Internet wireless.</li></ol><br /><span>Manually add a wireless network on a Windows XP computer </span><br /><br />Note: The following steps are for a wireless network that has WEP security.<br /><br />
<li>Click Start, then select Control Panel.</li>
<li>In the left pane, select Switch to Classic view.</li>
<li>Click Network Connections.</li>
<li>Right click Wireless Network Connections and select Properties.</li>
<li>Click on the Wireless Networks tab.</li>
<li>Click the Add button.</li>
<li>Enter the name of the wireless network (SSID). </li>
<li>Set the encryption type to WEP.</li>
<li>Clear the key is provided for me automatically check box.</li>
<li>Enter the network key and confirm it. Note: Make sure that "This is a computer-to-computer (ad-hoc) network" is not selected. Click OK, and then click OK again.<br /></li>
<li>Right-click Wireless Network Connections and select Status. </li>
<li>Click on the Support tab and check if there is a valid IP address.</li>
<li>Check if the computer can access the Internet wirelessly.</li></ol> <br /><br />If you still receive the same error message after manually adding a wireless network on a Windows XP computer, ensure that IEEE 802.1x authentication of the wireless adapter is disabled.<br /><br /><span>To disable IEEE 802.1x authentication: </span><br /><br />
<li>Click Start, then select Run.</li>
<li>In the Run dialog box type ncpa.cpl and then click OK.</li>
<li>Right-click the Wireless network connections icon, and then select Properties. </li>
<li>Click the Wireless network tab.</li>
<li>Click the Properties button beside Remove. </li>
<li>Click the Authentication tab, and clear the Enable IEEE 802.1x authentication for this network check box.</li>
<li>Click OK to update the settings.</li></ol>This TIP applies to: <br /><br /><span>All Windows XP and Vista computers that display the listed error messages when attempting to connect to wireless network of routers (specifically NETGEAR).</span>
Most T20 models did not have wireless built into the computers by default. You may have to add a wireless adapter to your computer. To verify whether or not you have a wireless card, open the middle cover on the back of your computer (with the computer unplugged and the battery removed) ... you should see a small card about the size of a business card next to an even smaller card. If the larger card has two antennae wires connected to it, you have wireless. If not, you don't have built in wireless and will have to use a USB or PC Card adapter.
First I would replace the drivers, and check the device manager for any conflict with the internal router and the wireless device. then run the add hardware App and let windows Plug and Play find the device. with thye drivers re-installed it should come back, If it dont the have the motherboard replaced.
I had sortof the same problem with my hpdv8000 pavilion laptop..I ended up calling the phone company that I have my DSL with and trouble shooting with them the connection. I had to get rid of one connection and start a whole new one. Until it recognized the new connection. If you call HP they will charge you $9.95 to trouble shoot your computer. Both together were really helpful in getting my computer back up and running. I also had to add the drivers back in. The disc was bought from HP My computer crashes regularly..I believe that I got a lemon....Hope this helps..The info is online under HP.com
fist check the setp by setp
1.check your wireless driver is install .....driver is install proparly then .
2.right click the wireless connetion propraties
3.select the tcp/ip propraties and add your
DNS ip add
and save it ....................
you are working with workgroup to add your workgroup in yor my computer proparties .............send me a repaly we have solve your problem in .........short time
Dearest crystal 7, you prombally need to reset your windows
wireless. go to add and remove and remove the wireless
drivers the reboot your computer and the reinstall your wireless driver ,then go to the control panel go to internet options then to connetions then scrow down to lan settings the put a check in atuomatically detect settings the apply then ok . the reboot your computer then set up your wireless for connections for your house and it should work ...... lala linda