Question about HP Pavilion a450n PC Desktop

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HP a450n P4

Network adapter stopped working and disappeared from the device manager

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Re-install the network adapter drives correctly with the CD you get
if the network card still not working
remove it carefully from the slot and clean the lan card and the PCI clot.
replace the lancard and re-install the drives
Restart the system after installing

Let me know if your problem is solved and rate me as FIXYA!

Posted on Apr 16, 2008

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Network card disappeared. Can not get on the internet. System does not acknowlege network card



  1. Try a system restore to a previous date when you were able to use the internet. E.g. yesterday.
  2. If not, try to disable and enable the Wi-Fi adapter in the device manager and see whether its help.
  3. Try to install the driver for your wireless card and see whether it helps.
  4. Open your computer and check for any loose connection
  5. I very much doubt for a faulty wireless card but if the above steps fail, you need to consider.

Good Luck!

Jun 14, 2011 | HP Pavilion a450n PC Desktop

1 Answer

No wireless adapter


Hi,

Have you check the wireless card under the Device Manager?

Start->Control Panel->Device Manager

Under Device Manager look for Network Adapter there will be sub folders under network adapter look for the wireless device. If its not showing it means that the Device is not working. If you want to make sure try to reinstall the Operating System and after that check again the Device Manager.

Mar 30, 2011 | HP Pavilion TX1320US Tablet PC

1 Answer

Can't connect to wireless internet anymore device


Please install the latest wireless adapter card driver and then configure it to your wireless router.

Dec 26, 2009 | Compaq Network adapter

1 Answer

My network adapter disappeared on mt desktop- do I


You might need to check the Device manager to see if the network card is there and installed properly.If the device manager says it is there and working then it will be a hardware issue.

Just in case your not sure how to get to Device manager, here is a shortcut. Right click on My Computer, click Manage. This will bring up the management console, have a look down the left and find Device Manager.

Oct 29, 2009 | 2wire (1000-100009-001) Network Adapter

1 Answer

HP F500, no wireless internet...


Uninstall the device from the device manager and in the device manager do this operation "Scan for hardware changes" , then u can find the wireless network adapter with no drivers installed. Then install the wireless device drivers , Ur Problem will be solved.

Oct 17, 2009 | HP Compaq Presario F500 F700 and G6000...

1 Answer

My broadcom network adapter is not working. It


Some HP notebooks will disable the wireless card when you connect an ethernet cable. Or it could have power saving turned on for that device. Check device properties and disable powersaving mode for any network devices. If it has been functioning fine and this is a recent development, your network card could be failing but there isn't enough data at this point to make that conclusion.

Oct 12, 2009 | Broadcom Computers & Internet

1 Answer

HP built-in wireless internet light cannot be


try this...

Windows WiFi Fix,

Windows Zero Wireless Configuration is one of the best programs to run a WiFi in Windows XP or Vista. Most of the other software packages that come with the different adapters have been poor at best in keeping a connection through Windows. Here is the best guide to get you back up and connected.

Windows XP:


Click Start
Right click on My Computer
When a window pops up click on properties
Click on the Hardware tab
Click Device Manager
Click the [+] next to Network Adapters
Find your wireless card and right click on it.
Click Disable
Windows may warn you that disabling the device may make it stop functioning.
Continue disabling the device.
Wait 30 seconds or so.
Right click on your wireless again and click Enable.
Exit the device manager.
Reconnect to your router.
You should now be able to connect to the internet.

Windows Vista:

Click Start Logo
Right Click Computer
Click Device Manager
Windows will ask you about opening Device Manager Click Continue
Click the [+] next to Network Adapters
Find your wireless card and right click on it.
Click Disable
Windows may warn you that disabling the device may make it stop functioning.
Continue disabling the device.
Wait 30 seconds or so.
Right click on your wireless again and click Enable.
Exit the device manager.
Reconnect to your router.
You should now be able to connect to the internet.

Oct 03, 2009 | HP Pavilion dv9000z Notebook

1 Answer

Network adapters vanished


Try removing the network adapter and reinserting it.

Jun 11, 2009 | Toshiba PA3235U-3BTM Network Adapter

1 Answer

My Wi Fi on my Acer Aspire 3003LC has disappeared I cannot find it in the device manager or anywhere


in device manager highlight network adapters and go to action and scan for hardware changes if that doesn't work i would back everything up and reistall windows.and if that still doesn't work i would have to say it is a device failure.

Apr 24, 2009 | Computers & Internet

1 Answer

WIRELESS ADAPTER


hi Vince,
Try this, Go to Control Panel->System->Hardware Tab->Device Manager. Select Intel Pro under Network Adapters. Right Click and Select Properties. Under the Advanced tab, there is a setting for Power Management. On Windows XP, this is a slider with Max Battery on one end and Max performance on the other.

If that don't work, there are several more solutions here,
http://forums12.itrc.hp.com/service/forums/questionanswer.do?admit=109447627+1199516626721+28353475&threadId=1087188

Jan 04, 2008 | Computers & Internet

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