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Ethernet port not working?


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#1 ktm113mcp

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Posted 09 August 2011 - 09:31 AM

Hey guys, sorry my first post has to be a question, but by reading through I feel like I have come to the right place. First off I have a basic understanding of computers, (I get some of the common sense stuff) so please keep this in mind. We have 4 Emachines desktops running Windows 7. 3 of the 4 use a Cisco wireless adapter USB to get on internet through our Netgear router. Sorry if I'm using the names like I'm advertising for them, just don't know how much difference knowing brand to brand makes. Anyways one of the desktops USB just stopped working, it showed up in the device manager when you would plug something in but it could not read off of it. I tried multiple portable drives and it the USB wifi adapter quit working. After a few hours I somehow figured out that if I brought the desktop and plugged it into a ethernet cable it would get online. I then performed a Windows update and it fixed the USB's. It done that twice over the period of a week. Both times a updat fixed the problem. I say all that to say Sunday, the one computer that is hardwired to the router by Ethernet cable quit working. The difference is the USB's all work fine, but I believe there is something wrong with the Ethernet port. Basically the same scenario one day its fine next it's not. I've check for updates but it say there is none. I have changed ethernet cable between them, tried swapping port with the cable. Also I swapped other computers to the same ports, they got online fine without a problem. I called Emachines they walked me through a test like thing in dos then told me it was fine. I haven't installed anything recently it just quit? Any help would be greatly appreciated, I need to get this thing up and running so I can sync our accounting info. Sorry for the long post, and thanks in advance!
Cody
Even a flying squirrel can find a nut every now and then.

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#2 ktm113mcp

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Posted 09 August 2011 - 01:51 PM

Is there any more information you need that I didn't include?
Even a flying squirrel can find a nut every now and then.

#3 MarkGS

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Posted 09 August 2011 - 04:55 PM

Let me just make sure I have this right, the USB adapter works? It's just the ethernet port that isn't functioning? Have you checked the device manager to ensure the driver is installed and to make sure it isn't disabled? When the cable is plugged in does the computer recognize that? On the ethernet port itself when the cable is plugged in do you see 2 lights flashing?

#4 derek.ellis

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Posted 10 August 2011 - 01:46 AM

Did you check the BIOS to be sure that the ethernet port is turned on? Some Mobo Manufactuers give you the option to turn off the ethernet port, if you plan on going wirelss only. This is a security feature.

#5 ktm113mcp

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Posted 10 August 2011 - 02:12 PM

Let me just make sure I have this right, the USB adapter works? It's just the ethernet port that isn't functioning? Have you checked the device manager to ensure the driver is installed and to make sure it isn't disabled? When the cable is plugged in does the computer recognize that? On the ethernet port itself when the cable is plugged in do you see 2 lights flashing?

Right, all the USB's on this computer seem to be working. I can get online by using the usb adapter, but not the ethernet cable. I have checked the driver, emachines had me to uninstall it then check to make sure it is enabled, which it is. Also says it is working properly. The computer does recognize that it has been plugged in, and does light up. This morning I got to a new screen, when trying to connect to the router the computer say there is a error of 751. I didn't quite get all of what it say my computer freezes up when I get to it. Any ideas? Thanks guys.
Even a flying squirrel can find a nut every now and then.

#6 ktm113mcp

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Posted 10 August 2011 - 02:13 PM

Did you check the BIOS to be sure that the ethernet port is turned on? Some Mobo Manufactuers give you the option to turn off the ethernet port, if you plan on going wirelss only. This is a security feature.

I'm not sure what that is? Sorry. How do I do that? Could it have been turned off on its on by another program or something?
Even a flying squirrel can find a nut every now and then.

#7 hamluis

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Posted 10 August 2011 - 05:57 PM

Howstuffworks How BIOS Works - http://computer.howstuffworks.com/bios.htm/printable

•Press Tab or Del while the eMachine logo displays on screen.

•Other eMachine computers may use F2 to enter BIOS.

I believe that F2 or Delete works on eMachines that I have had a chance to play with.

In any case, when you boot, it will tell you which key to press. It will probably refer to Setup, rather than BIOS.

Louis

#8 coxchris

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Posted 11 August 2011 - 12:47 AM

another thing is to try is using the troubleshooter

First let see what windows 7 can identify the problem and fix your network card. Go to start menu>>control panels>>click on the Troubleshooting> Click Network and Internet(depending on what troubleshooting pack you have install on your computer it will take a min or two)>>Click on Network Adapters and follow the steps. it will run diagnosis test and find out what wrong it will attempt to fix the problem if you received a error please type it down on here.

now sometimes the computer wont recognize the USB adapter in a different USB port without re installing the drivers for each port on the motherboard. for example I have a Linksys adapter

If I put the adapter in USB slot A it will always find the driver and the wireless profile for my Access Point.
if I swap into a USB slot B it will need to install the driver and I need to enter my wireless information the SSID and password and than it will work

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#9 ktm113mcp

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Posted 11 August 2011 - 01:33 PM

another thing is to try is using the troubleshooter

First let see what windows 7 can identify the problem and fix your network card. Go to start menu>>control panels>>click on the Troubleshooting> Click Network and Internet(depending on what troubleshooting pack you have install on your computer it will take a min or two)>>Click on Network Adapters and follow the steps. it will run diagnosis test and find out what wrong it will attempt to fix the problem if you received a error please type it down on here.

now sometimes the computer wont recognize the USB adapter in a different USB port without re installing the drivers for each port on the motherboard. for example I have a Linksys adapter

If I put the adapter in USB slot A it will always find the driver and the wireless profile for my Access Point.
if I swap into a USB slot B it will need to install the driver and I need to enter my wireless information the SSID and password and than it will work

Awesome is started working! I done just like you said, it came up with and said the DHCP was not enabled. I told it to fix it and it worked! Just for reference what is DHCP and how would it have became disabled? Thanks to everybody, I really appreciate the help! :thumbsup:
Even a flying squirrel can find a nut every now and then.

#10 coxchris

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Posted 12 August 2011 - 10:41 AM

DHCP is protocol to obtain automatically IP address with your network

Depending on your ISP you might have change it to static IPs in your computers or routers but ISP charge for static IP. So DHCP is a service that ISP uses to automatically obtain IP addressees to you or me or the public.

For Reference: What is DHCP, http://en.wikipedia.org/wiki/Dynamic_Host_Configuration_Protocol

Your welcome and give Microsoft a big hand for implementing that

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