Wired LAN Connection "Unidentified network" No network access

[sanwijaya]

Wired LAN Connection "Unidentified network" No network access

Hey guys,
I have been using LAN for quite a while. However, last two weeks, it suddenly stopped working. I have tried several solutions but none of them worked. I don't know what's wrong and looking for help! Thanks, any help would be greatly appreciated!

following is ipconfig/all:

Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Windows\System32>ipconfig/all

Windows IP Configuration

Host Name . . . . . . . . . . . . : User-PC
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller
Physical Address. . . . . . . . . : 54-04-A6-09-8E-52
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::c591:34c8:3aa3:7e50%17(Preferred)
Autoconfiguration IPv4 Address. . : 169.254.126.80(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.0.0
Default Gateway . . . . . . . . . :
DHCPv6 IAID . . . . . . . . . . . : 290718886
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-16-0F-45-E9-74-2F-68-A0-C4-B1

DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1
fec0:0:0:ffff::2%1
fec0:0:0:ffff::3%1
NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter Local Area Connection* 13:

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 6TO4 Adapter:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft 6to4 Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.{50650130-A669-403D-93EF-12D8F1CD2485}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #4
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

C:\Windows\System32>

 

[sanwijaya]

This is ipconfig/all with wifi on.

Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Windows\System32>ipconfig/all

Windows IP Configuration

Host Name . . . . . . . . . . . . : User-PC
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : uml.edu

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller
Physical Address. . . . . . . . . : 54-04-A6-09-8E-52
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::c591:34c8:3aa3:7e50%24(Preferred)
Autoconfiguration IPv4 Address. . : 169.254.126.80(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.0.0
Default Gateway . . . . . . . . . :
DHCPv6 IAID . . . . . . . . . . . : 290718886
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-16-0F-45-E9-74-2F-68-A0-C4-B1

DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1
fec0:0:0:ffff::2%1
fec0:0:0:ffff::3%1
NetBIOS over Tcpip. . . . . . . . : Enabled

Wireless LAN adapter Wireless Network Connection:

Connection-specific DNS Suffix . : uml.edu
Description . . . . . . . . . . . : Atheros AR9002WB-1NG Wireless Network Ada
pter
Physical Address. . . . . . . . . : 74-2F-68-A0-C4-B1
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::3c33:a20:1b54:45ca%11(Preferred)
IPv4 Address. . . . . . . . . . . : 10.248.96.164(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Saturday, July 05, 2014 4:11:42 PM
Lease Expires . . . . . . . . . . : Saturday, July 05, 2014 6:23:58 PM
Default Gateway . . . . . . . . . : 10.248.96.254
DHCP Server . . . . . . . . . . . : 129.63.78.250
DHCPv6 IAID . . . . . . . . . . . : 242495336
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-16-0F-45-E9-74-2F-68-A0-C4-B1

DNS Servers . . . . . . . . . . . : 129.63.78.250
129.63.94.201
NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter isatap.uml.edu:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : uml.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* 13:

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
IPv6 Address. . . . . . . . . . . : 2001:0:9d38:90d7:ccf:ba3e:7ec0:79f(Prefer
red)
Link-local IPv6 Address . . . . . : fe80::ccf:ba3e:7ec0:79f%17(Preferred)
Default Gateway . . . . . . . . . : ::
NetBIOS over Tcpip. . . . . . . . : Disabled

Tunnel adapter isatap.{50650130-A669-403D-93EF-12D8F1CD2485}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #3
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter 6TO4 Adapter:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft 6to4 Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

C:\Windows\System32>

 

[2xg]

Welcome to Seven Forums,

Along with the troubleshooting tasks that you've done, have you tried a System Restore? If not, please follow this Tutorial and restore your computer back to when your were able to use your wired connection.

 

[sanwijaya]

The oldest restore point is two weeks ago. However, I realized that the wired connection has not been working for around a month. My friend also told me that he tried a system restore on my laptop but it still didn't work. Any other solution? Thanks

 

[2xg]

One of the solutions that you've done - have you tried updating the Ethernet driver to the latest?

Changing the Ethernet cable?

Disabling/enabling the Ethernet from the Device Manager?

Changing the Speed & Duplex setting of the adapter, here's how?

 

[sanwijaya]

Yes, it is up to date as I uninstalled it reinstalled it from the device manger. It is not the ethernet cable because if I plug it in to my brother's laptop, it works perfectly. I tried disabling and enabling from device manager and changing the Speed & Duplex to 100 mbps full duplex, but it still does not work.

 

[2xg]

You may try sfc /scannow command and if this didn't resolve your issue you might want to try getting a new ethernet adapter/card.

 

[sanwijaya]

This is what it says

Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Windows\System32>sfc /scannow

You must be an administrator running a console session in order to
use the sfc utility.

C:\Windows\System32>

What should I do?

 

[2xg]

If you please go back to the link that I gave you on how to run the sfc /scannow command, you have to run it in elevated command.
http://www.sevenforums.com/tutorials/783-elevated-command-prompt.html

 

[sanwijaya]

This is what it says. However, the LAN is still not working. I guess I need to change the ethernet card. Do you know how much will it cost approximately to replace it with a new one? Thanks for your help!

Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Windows\system32>sfc /scannow

Beginning system scan. This process will take some time.

Beginning verification phase of system scan.
Verification 100% complete.
Windows Resource Protection found corrupt files but was unable to fix some of th
em.
Details are included in the CBS.Log windir\Logs\CBS\CBS.log. For example
C:\Windows\Logs\CBS\CBS.log

C:\Windows\system32>

 

[2xg]

You may check the list here from Amazon, please get a gigabit card-see the first one, either PCI/PCIe Card. You may also find a Network Card from your local retail store. There's no need to buy an expensive one.

 

[sanwijaya]

Alrighty, thanks for your help! Really appreciate it..

 

[2xg]

Please remember that I have only suggested that it might be a bad NIC, make sure that if you'll need to return it for any reasons it's a hassle free return. I always buy from reputable Vendors.

Alrighty, thanks for your help! Really appreciate it..

 

[sanwijaya]

Hi, so I just went to a service computer this afternoon and when he plugged a LAN cable to my laptop there, it worked perfectly. So I was totally confused of what is wrong with my laptop right now.
I live in a university dorm, so I can't do anything with the university internet. However, I came to my friend's room and used his LAN cable from there, which works perfectly for his laptop, but the problem remains the same for me. Does anyone have any idea? Thanks!

 

[2xg]

You will need to consult the Uni IT Dept.

Hi, so I just went to a service computer this afternoon and when he plugged a LAN cable to my laptop there, it worked perfectly. So I was totally confused of what is wrong with my laptop right now.
I live in a university dorm, so I can't do anything with the university internet. However, I came to my friend's room and used his LAN cable from there, which works perfectly for his laptop, but the problem remains the same for me. Does anyone have any idea? Thanks!