Wired LAN Connection "Unidentified network" No network access

Page 1 of 2 12 LastLast

  1. Posts : 8
    Windows 7 Home Premium 64-bit
       #1

    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>
      My Computer


  2. Posts : 8
    Windows 7 Home Premium 64-bit
    Thread Starter
       #2

    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>
      My Computer


  3. 2xg
    Posts : 2,377
    Win7 & Win8 64bit
       #3

    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.
      My Computer


  4. Posts : 8
    Windows 7 Home Premium 64-bit
    Thread Starter
       #4

    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
      My Computer


  5. 2xg
    Posts : 2,377
    Win7 & Win8 64bit
       #5

    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?
      My Computer


  6. Posts : 8
    Windows 7 Home Premium 64-bit
    Thread Starter
       #6

    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.
      My Computer


  7. 2xg
    Posts : 2,377
    Win7 & Win8 64bit
       #7

    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.
      My Computer


  8. Posts : 8
    Windows 7 Home Premium 64-bit
    Thread Starter
       #8

    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?
      My Computer


  9. 2xg
    Posts : 2,377
    Win7 & Win8 64bit
       #9

    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.
    Elevated Command Prompt
      My Computer


  10. Posts : 8
    Windows 7 Home Premium 64-bit
    Thread Starter
       #10

    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>
      My Computer


 
Page 1 of 2 12 LastLast

  Related Discussions
Our Sites
Site Links
About Us
Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

© Designer Media Ltd
All times are GMT -5. The time now is 00:20.
Find Us