Now the connecion is enable ,but no internet ,when i unplug lan cable ,network cable unplugged ,if i put it in ,enable and if itry to connect to internet ,no sever? What can i do?

possible reasons why you can't connect to the internet
1. Ethernet cable is not plug in tight from the modem to your laptop. 2. DSL light on your modem is RED/flashing green/ OFF 3. if you have router try to unplug both modem and router for 20 seconds then turn your modem on first and wait for the DSL light on the modem become solid green before powering the router ON 4. check the LACAL AREA CONNECTION. it might be disabled. to check click satart menu then go to control panel then look for network ana internet then click network and sharing center. From the left had side of the page look for manage network connection and click it then check if the LAN is disabled. if its disabled right click the LAN and select enable. 5. check internet connection again if it works

Hi, 1. Unplug the power from the Modem to the Router 2. Plugin back the power into the Modem and wait 60 sec.. 3. Plugin back the power for the Router wait 60 sec.. 4. Plugin a lan cord from the router to the first wired PC 5. See if you can get on the internet 6. Login to the Router and see if the Connection to the WAN is started? 7. If not started then unplug the wired lan cable and reset the router wait 30 secs to 45 secs before unplug the power then plug the power in again. Then connect the lan cable then connect to the GUI for WEB. Make your See if it connects to the WAN. 8. Test the Network WAN -Internet and LAN - Home Network.
Take care

If you are connecting to the Internet using a wireless connection and your LAN card in the computer does not have a LAN cable connecting it to a hub or router then you will get a message "A network cable is unplugged".
If you don't use a wireless connection and you only connect to the your network/Internet then the problem is either the LAN cable has come loose in the computer's LAN card or at the router or the LAN cable is faulty.

Check in the Device manager to see if all the devices are enable and working.
The one with a yellow ? against that device requires a driver installation.
Is the LAN device OK?
How do you intend to setup your LAN, is it for Internet access or a home network?
I need more information on your problem, together with error messages.

Hi there.
Restart the PC and go into the bios to make sure the on-board LAN is enabled, if it is try as jery says and try another ethernet cable.

Post back please and good luck

Check TCP/IP Properties and Advanced settings at each non-working PC (i.e.to obtain IP address automatically, DHCP is enabled, obtain DNS, etc) that the network cards are not disabled and also configured correctly. Also check "Internet Connection Sharing" options are correct. Check cables, link lights. Ping and that theres a reply to each address.

Reset your ISPs modem

It is the status of LAN card.If u not use that just disable that LAN card from My Network Places.

There will be a lapse in network communications as your laptop switches from LAN to Wireless, presumming that you have a Wireless access point in the area with DHCP enabled. If it doesn't work at all when unplugged from the ethernet, you may want to verify that your Wireless is turned on, and connecting to your network using the Wireless Network Configurator included with windows xp and above

-Backu

Which are you using, wireless internet or wired?

If your using wireless then:
Goto Control Panels via start menu
Double Click on network Connections
Right Click the LAN and choose Properties
On the bottom you see the "Show icon notification ..." make sure that is unchecked.

Close out and your good. no more notification.