Ethernet card installed, but no connection available

June 12, 2012 at 16:17:16
Specs: Windows 7
I've been having some problems with my Ethernet connection lately.

The problem started early last week. I'm currently relocating thanks to a job, so I unplugged my laptop from the Ethernet connection I had at my old place.

At two different locales, I have tried to use an Ethernet connection in order to get better speed (the wireless at the first locale was non-existent and at the second it is extremely slow in my room). I have done so with two separate cables that I have tested on others' computers and found that they are perfectly fine. That, of course, leads me to believe that it is my computer and is either a hardware or software problem (here's hoping it's the latter).

Anyway, my laptop is a Dell Inspiron 1720 (purchased in 2006). About a year ago, I updated to Windows 7 from the pre-installed Vista. Never had any problems (as I said, everything was fine up until about a week ago). The installed card is a Broadcom 440x 10/100 Integrated Controller. Everything under Device Manager indicates that the hardware is working properly and has all of its drivers installed, but nothing is working.

I have tried to uninstall and re-install the drivers (albeit by allowing windows to find them automatically), but the result is the exact same.

I have checked the port and found that there is no debris or obstructions. My computer hasn't been dropped or mishandled in any way.


See More: Ethernet card installed, but no connection available

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#1
June 12, 2012 at 16:25:05
Where is the ethernet cable connected to, to a router or to a modem?

Also, post the output of ipconfig /all for review.
If you don't know, how to do this, click here


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#2
June 12, 2012 at 16:57:59
The cable is plugged into a jack. My group is currently being housed on Delta State University's campus, so that is why it is listed. We stopped in Memphis for a few days and it was plugged in there as well with the same results. At home, it was plugged straight into my Modem/router combo (DSL).

The report:
Windows IP Configuration

Host Name . . . . . . . . . . . . : derkum-PC
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Broadcast
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : deltastate.edu

Ethernet adapter Local Area Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Broadcom 440x 10/100 Integrated Controller
Physical Address. . . . . . . . . : 00-1C-23-88-99-63
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Ethernet adapter Bluetooth Network Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Bluetooth Device (Personal Area Network)
Physical Address. . . . . . . . . : 00-19-7E-DA-31-B9
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Wireless LAN adapter Wireless Network Connection:

Connection-specific DNS Suffix . : deltastate.edu
Description . . . . . . . . . . . : Intel(R) Wireless WiFi Link 4965AGN
Physical Address. . . . . . . . . : 00-13-E8-7E-F6-91
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IPv4 Address. . . . . . . . . . . : 10.10.11.193(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.0.0
Lease Obtained. . . . . . . . . . : Tuesday, June 12, 2012 5:57:06 PM
Lease Expires . . . . . . . . . . : Wednesday, June 20, 2012 6:21:10 PM
Default Gateway . . . . . . . . . : 10.10.1.1
DHCP Server . . . . . . . . . . . : 1.1.1.1
DNS Servers . . . . . . . . . . . : 10.5.1.3
NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter isatap.deltastate.edu:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : deltastate.edu
Description . . . . . . . . . . . : Microsoft ISATAP Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 12:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.{067D5AE7-32F0-4CC2-98BA-63997BE7B76C}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes


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#3
June 12, 2012 at 17:55:12
Could you please post another ipconfig /all, while the ethernet card is connected?

You are currently connected via wireless connection, that should work perfectly.

But you asked for your ethernet connection, right?


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Related Solutions

#4
June 12, 2012 at 18:04:49
That's the thing. It IS connected, and everything is shown as working properly, but no connection is popping up in the Network and Sharing Center.

Yes, the problem is with the Ethernet connection, not with the wireless (which is rather slow where they're housing us).


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#5
June 12, 2012 at 18:50:05
Can anyone else of your group connect via ethernet, by using your wall plug?

Or maybe it's not plugged into a switch in the server room, so that the wall plug is indeed not connected.
In that case, you have to talk to the administrator of the campus.


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#6
June 12, 2012 at 20:56:47
Yes. Had someone test it WITH both of my cords. Worked fine for them.

If the ethernet card were dead, would it still show up as working properly?

I have also updated to the most recent drivers manually. Didn't work.


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#7
June 13, 2012 at 05:07:43
Is the ethernet card shown correctly in the device manager?
Can a colleague of you connect to that wall plug via ethernet cable, so that if works?

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#8
June 13, 2012 at 05:29:13
Yes, everything is shown as being working correctly in device manager. I've had a colleague connect via both of the cables I had tried. It is definitely my computer.

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#9
June 13, 2012 at 05:40:52
You may have to disable wireless, to make ethernet card to work.
Laptops mostly do have a key combination to enable/disable the wireless card.

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#10
June 13, 2012 at 07:56:02
I've tried to disable it, but the Ethernet connection does not work even at that point.

The Network Sharing Center does not even recognize that 1) an Ethernet cord is plugged up or 2) that a connection is available.

Again, this was never a problem before a couple of weeks ago.


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#11
June 13, 2012 at 08:09:05
Is it possible, to connect your laptop to a router of a colleague via ethernet cable?
So we can make sure, that in general the ethernet card works or not.

Are you sure about the wall plug.
Is it definately a LAN plug or could it be an ISDN plug for ISDN phones?


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#12
June 13, 2012 at 16:16:08
It is a LAN plug. As I said, I plugged both cables up and tried my buddy's computer on them both. Worked like a charm for him. I'm hoping it is a software or settings issue, though I'm worrying that it is a hardware thing and I'll have to buy a card.

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#13
June 13, 2012 at 17:15:24
Some stupid idea came to my brain.
Is the ethernet card possibly disabled in the system bios?

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