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First - re-seat the harddisk and reboot the computer. If the computer does not boot up then reboot andgo into the BIOS configuration to see if the BIOS detects the hard drive. If itdoesn't detect the hard drive then it could be faulty.Then the hard drive needsto be replaced in the computer/laptop, Windows installed and the computer orlaptop's device drivers plus your programs etc. to get a functioningcomputer/laptop again.
In the System Properties window click the Hardware tab.
In the Hardware tab click the Device Manager button.
Then on left side Search for Yellow question mark on Ethernet controller if it occurs than the problem is that you have to reinstall your LAN drivers which can be Downloaded here And If there is no Yellow Question Mark then you have to bring a LAN card and insert in PCI Express Slot.
goto device manager look for network in list ,if you see a x nerxt to it or a (!) mark then its etheir disabled or needs a driver then goto this link put in the right model and op then download the network driver
When you plugged in the ethernet cable, does it show on your windows tray (lower right corner of the screen) that the LAN is connected? It should show you "Connected" if you hover your mouse on the LAN icon.
Try also to plug in the ethernet cable to a different port on the router, and that the port number on the router is showing a solid green led light.
If all has been observed and still you cannot connect, look if the network adapter for your lan is working. RIGHT click your My Computer or "Computer" and select Manage. The Computer Management window will open. Click on the Device Manager on the left to show the list of devices on the right. Look for Network Adapters and click the + sign. See if your LAN adapter is not showing any yellow exclamation point. Also, right click on it and select Properties. You should see the device is working properly under status.
Please let me know how this goes. Thank you for using FixYa.
check device manager if ethernet adapter is installed or not installed. for this you type 'devmgmt.msc' on run.If ethernet adapter is not installed you can use your motherboard driver cd for installation of drivers
The device may be looking for a certain drive letter. Remove all other "removable" devices. Go to the device manager and remove the personal drive, reboot the computer and try installing the personal drive again.
Was the board recently struck by lightning? I've had several problems where lightning struck the motherboard through the lan ports, while not destroying the board itself, but just the lan port, and usually not showing up in device manager gives it away.
You will have to replace the motherboard if this is the case
go to the my computer--> right click manager click 1st scan drivers all will show the cd rom drivers clicks it..
another one remove the cable see the jupmer settings give the moster and slave which one you want.. fixed that jupmer go to the BIOS see the there it is dettecting or not..
once there it is dettecting. go to the control panel --> addware wizard click it that one go to next there it will ask Yes i've already connceting hardware drivers .. click next .. go to the select your cd or dvd drivers click next it will take automitecally.. drivers..
just try to check if there is an RJ45 port at the back of ur system, then check if the drive is installed. on your desktop, right click on the "my computer icon" then select manage and then select device manager. on device manager expand the network adapters. there u can check if the driver of the lan card is installed on your system.