my notebook cannot detect the LAN, but the device is working properly status in ethernet controller properties, i already reinstall it, but the problem is still the same, do you think that the LAN jack has the problem here?
Please help me.
Czher
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It sounds like the lan jack has the problem.
If this is in an office environment where multiple jacks go to a wiring closet, there could be mutiple problems including...
1. damaged cable in the walls
2. damaged wall jack or improper connection of jack to cable in the wall
3. The other end isnt connected to any network equipment
4. the network administrator has disabled this network port on purpose
it's enabled, and i tried several cables already connected to the network, but the message is always "the network cable is unplugged", do you think that my RJ45 jack has the problem and need to replaced?, but when i check the device status " this device is working properly", i tried also to uninstall and install, but again it is still not able to connect.
this sounds like a common problem, usually either the transmit or receive function of the onboard LAN port have failed, which does not show up on Device Manager or system diagnostics easily. You will have to use either a USB or PCMCIA Ethernet card to try and resolve your issue, as the only other way would be to replace the motherboard. i have had this many time son desktops and laptops, and obviously its easier to fix on a desktop.
If the unit is company property, your IT department/person should be fixing this, if it's yours and under warranty, your manufacturer should be replacing the board under warranty. If it's out of warranty, then you need to purchase one of the two devices i mentioned or switch to wireless connectivity if you have it. Again, you can buy wireless add-on cards/USB too. Get yourself a good gigabit Ethernet card, and you can disable the dead LAN port in the BIOS so the system does not see it.
I agree with shaunadem. You can by a type 2 PC card (network adapter) to use alternatively in your laptop and then disable the onboard network adapter via BIOS or Device Manager. This is if you are adamant about using a hard-wired connection. Something else to try is to connect another system using the same network cord/connection you were using to ensure there is nothing wrong with the port you are connecting to as part of process of elimination for troubleshooting.
If you want to use wireless, then go with a USB wireless device.
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by: cerrmjPosted on 2009-07-28 at 20:22:49ID: 24966940
Most laptops have status lights inside or next to the rj45 jack. If you plug your network cord in and don't see any lights - then there is some sort of electrical connection problem - either with the jack on the laptop, the network cord or the router.
If your laptop does not have lights next to the jack - then when you plug the laptop into your router, does the router status light for the jack on the router light up? If not, then again you have an electrical issue with the jack or the cord.
If you know you have a good cord, and you don't get status lights on either the laptop or the router - then it is likely that the lan jack on your laptop is dead.
Good luck.