Hello, i have a user that has a very unusual issue, he unplugs his ethernet cable and then turns on his wireless and works in a meeting room or just away from his desk, its when he gets back to his desk he plugs in the ethernet cable and turns off his wireless to finds that there is no network.... after looking at is i found that the ethernet controller had disappeared from his list of devices.... only a restart of his computer while the cable is plugged in will it return (Or login as an admin and scan for hardware changes and it finds it and installs it). the only thing i found that i have tried is in the device properties then Power management tab there a check box which says 'Allow the computer to turn off this device to save power' it was ticked but now it is not but this continues to accrue. any suggestion? the user setup is as follows HP Elite book 6730b with windows 7 enterprise 64bit, the network drivers have been reinstalled from the HP site and it is part of a domain.

My first suggestion is to make sure that this computer is using the latest drivers for the Network Interface Card. You should visit the HP website and check. Visit: anITKB.com, an IT Knowledge Base.

My first suggestion is to make sure that this computer is using the latest drivers for the Network Interface Card. You should visit the HP website and check. Visit: anITKB.com , an IT Knowledge Base. like i said, "the network drivers have been reinstalled from the HP site"

Hey Is he still facing the problem after re-installing the Driver

While I normally like to investigate what the issue actually is by looking at the event logs, windows logs, vendor's etc for clues, you may find that if you simply go to Device Manager, Uninstall the device, let Windows Detect and re-install the device driver, the problem may simply be resolved. Visit: anITKB.com, an IT Knowledge Base.

What is the model of the laptop? You need to ensure that the installed driver is designed for Windows 7.Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

Hey Is he still facing the problem after re-installing the Driver no this issue it still occurring,

While I normally like to investigate what the issue actually is by looking at the event logs, windows logs, vendor's etc for clues, you may find that if you simply go to Device Manager, Uninstall the device, let Windows Detect and re-install the device driver, the problem may simply be resolved. Visit: anITKB.com , an IT Knowledge Base. i have looked through the event log etc and found nothing that indicates the issue, in Device manager the device (network controller) is no longer visible and only when i scan from changes dose it detect and reinstall.

What is the model of the laptop? You need to ensure that the installed driver is designed for Windows 7. Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. ” the model number is in the first post 'HP Elite book 6730b with windows 7 enterprise 64bit' i downloaded the correct driver direct from the HP site.

an interesting point is he had an issue with his USB port not recognize any device we put in them when i when to safely remove the USB device from the icon in the system tray i saw that i could safely remove the NIC which should not show as a USB device..... also it was saying there were 6 USB ports and the laptop only has 4.... any ideas?

Have you installed the latest BIOS? HP Compaq 6730b Notebook PC - Download drivers and software - HP Business Support Center Important Note: Microsoft provides third-party contact information to help you find technical support. This contact information may change without notice. Microsoft does not guarantee the accuracy of this third-party contact information. Also you may temporary disable the antivirus and check the result.Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

Have you installed the latest BIOS? HP Compaq 6730b Notebook PC - Download drivers and software - HP Business Support Center Important Note: Microsoft provides third-party contact information to help you find technical support. This contact information may change without notice. Microsoft does not guarantee the accuracy of this third-party contact information. Also you may temporary disable the antivirus and check the result. Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. ” no i nave not, ill do this and get back to you i have the same model doing this now so it must be something specific to that model

i installed the latest BIOS and still it thinks there are 6 USB ports, and it still thinks that the network port is a USB device and can be removed safly.... here is a pic of it so that you know im not kidding http://img535.imageshack.us/img535/3103/capturebcw.png thanks for all those who can give some time to look at this.

turn off lan power saving in bios