[ravi.singh]

i am also having the same problem what should i do

[navyjax2]

Like I said, uninstall and re-install the network drivers.

Download your network adapter driver from your manufacturer's website (i.e. broadcom.com for a Broadcom card, intel.com for an Intel card, etc.). Do nothing with it except to download it.

Go to the Add/Remove Programs and remove any program associated with your network card that is affected, and then go to the Device Manager (Start, Run, type devmgmt.msc) and right-click the appropriate network adapter and say uninstall and reboot.

If you get an Found New Hardware wizard when you reboot, hit Cancel, find the driver you downloaded. If it came in a zip file form, open that and look for a setup.exe (or autorun.exe or very similar .exe). Run that.

If there are no exe's, and there are .ini and .inf files present (go to My Computer, Tools, Folder Options, View tab, and uncheck Hide extensions for known file types to see the file extensions if needed), extract the files into their own folder, then go back to the Device Manager, right-click the top-most icon that has your computer name there, and say "Scan for hardware changes". The "Found New Hardware" wizard will re-appear. Tell it that you have the driver and direct it to that folder you extracted the zip file to and you should be fine from there by just hitting "Next" and "OK" on everything, even if you don't think you should hit those.

The only way you'll mess up anything is if you didn't download the right driver from the website from what you had in the Device Manager in the first place. Anyway, good luck.

[RATickle]

The solution suggested by bmense worked for me when nothing else did.

Thanks bmense!

[gniknomis]

+1 for bmense's solution. Worked perfectly. Thanks

[lmbrt]

The solution suggested by bmense worked for me as well when nothing else did.
But I had to follow an additional step: after rebooting you may still not be able to connect through the LAN icon and get the usual message: "Connection failed!".
So I enabled the LAN through Device Manager, but I disabled it through the icon in the System Tray.
My laptop spent about 2-3 minutes thinking, chewing and crunching, but in the end everything is fine!
Thanks bmense!