Local area connection shown as unidentified network - no internet access

Discussion in 'Windows 7 Networking' started by Tekoms, Nov 22, 2011.

  1. Tekoms

    Tekoms New Member

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    Basically my ethernet capability flew out the window ranomly the other day. Wireless works perfectly however..

    before ...the other day.... it has been working solidly for almost a year

    Im plugged into a router which is running off my cable modem, both sitting less than a foot away from me. Also hooked up to the router is another computer, and my xbox
    the xbox works but the other computer cant seem to get a local connection either.

    at first i assumed they were having an ip conflict of some sort, but why now after all this time?

    I have tried:
    - ipconfig /release - /renew
    - abolishing bonjour
    - taking the other pc completely off the router/network
    - updating drivers.....rolling back the updates
    - different cables different ports
    -plugging directly into the modem
    - and asking nicely

    im on my laptop, Dell studio
    also the first time i noticed this happen was directly after having powered down the modem and router.

    below is the ipconfig

    Microsoft Windows [Version 6.1.7601]
    Copyright (c) 2009 Microsoft Corporation. All rights reserved.
    C:\Users\djs>ipconfig /all
    Windows IP Configuration
    Host Name . . . . . . . . . . . . : dontworryboutit
    Primary Dns Suffix . . . . . . . :
    Node Type . . . . . . . . . . . . : Hybrid
    IP Routing Enabled. . . . . . . . : No
    WINS Proxy Enabled. . . . . . . . : No
    DNS Suffix Search List. . . . . . : hot.rr.com
    Wireless LAN adapter Wireless Network Connection:
    Connection-specific DNS Suffix . : hot.rr.com
    Description . . . . . . . . . . . : Dell Wireless 1397 WLAN Mini-Card
    Physical Address. . . . . . . . . : 00-23-4E-AB-78-B4
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes
    Link-local IPv6 Address . . . . . : fe80::5010:8b4e:ced6:1233(Preferred)
    IPv4 Address. . . . . . . . . . . : 192.168.1.101(Preferred)
    Subnet Mask . . . . . . . . . . . : 255.255.255.0
    Lease Obtained. . . . . . . . . . : Tuesday, November 22, 2011 2:13:00 AM
    Lease Expires . . . . . . . . . . : Wednesday, November 23, 2011 2:13:00 AM
    Default Gateway . . . . . . . . . : 192.168.1.3
    DHCP Server . . . . . . . . . . . : 192.168.1.3
    DHCPv6 IAID . . . . . . . . . . . : 218112846
    DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-15-90-20-61-00-22-19-DD-80-E3
    DNS Servers . . . . . . . . . . . : 209.18.47.61
    209.18.47.62
    NetBIOS over Tcpip. . . . . . . . : Enabled
    Ethernet adapter Local Area Connection:
    Connection-specific DNS Suffix . : hot.rr.com
    Description . . . . . . . . . . . : Broadcom NetLink (TM) Gigabit Ethernet
    Physical Address. . . . . . . . . : 00-22-19-DD-80-E3
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes
    Link-local IPv6 Address . . . . . : fe80::b51f:8f12:f5fd:1c09(Preferred)
    IPv4 Address. . . . . . . . . . . : 192.168.1.102(Preferred)
    Subnet Mask . . . . . . . . . . . : 255.255.255.0
    Lease Obtained. . . . . . . . . . : Tuesday, November 22, 2011 2:25:59 AM
    Lease Expires . . . . . . . . . . : Wednesday, November 23, 2011 2:25:59 AM
    Default Gateway . . . . . . . . . : 192.168.1.3
    DHCP Server . . . . . . . . . . . : 192.168.1.3
    DHCPv6 IAID . . . . . . . . . . . : 234889753
    DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-15-90-20-61-00-22-19-DD-80-E3
    DNS Servers . . . . . . . . . . . : 209.18.47.61
    209.18.47.62
    NetBIOS over Tcpip. . . . . . . . : Enabled
    Tunnel adapter isatap.hot.rr.com:
    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . : hot.rr.com
    Description . . . . . . . . . . . : Microsoft ISATAP Adapter
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes
    Tunnel adapter Teredo Tunneling Pseudo-Interface:
    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. . . . . . . . . . . : 2001:0:4137:9e76:2891:20b0:bcf6:abd3(Pref
    erred)
    Link-local IPv6 Address . . . . . : fe80::2891:20b0:bcf6:abd3(Preferred)
    Default Gateway . . . . . . . . . : ::
    NetBIOS over Tcpip. . . . . . . . : Disabled
    C:\Users\djs>

    Thanks in advance to anyone that has any thoughts...
     
  2. Trouble

    Trouble Noob Whisperer

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    Hello and welcome to the forum.
    Try this and see if it helps
    Click the start orb and type
    device manager
    into the search box and hit enter
    Expand network adapters
    select then right click the Broadcom (wired adapter) and choose properties
    In the resultant dialog box select the "Advanced" tab
    In the left column select "Network Address" yours maybe worded slightly different (MAC address or Physical Address) words to that affect.
    In the right column select the radio button next to the "Value:" box and enter this
    002219DD80E3
    That's the actual MAC address of your Broadcom card minus the hyphens (dashes, "-")
    OK your way back out of there and reboot.
    Keep us posted
    Regards
    Randy
     
  3. Tekoms

    Tekoms New Member

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    Hello Trouble and thank you for the swift response.

    Okay i was able to follow your instructions and enter that MAC address into the Value box, but to no avail.

    In my network and sharing center it still shows two active networks
    The first - a home network, which shows my wireless network connection (still working flawlessly)
    The second - a 'public, "Unidentified Network," which shows a Local area connection (and still has no internet access)

    these are normally under the same name with a working ethernet connection
     
  4. Trouble

    Trouble Noob Whisperer

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    Can you click on Public network in the Network and Sharing Center and change it to home or work?
    Can you click the local area connection (name) and in the resultant dialog box click the details button and confirm the the IPv4 addressing schema is correct and appropriate for you network including the inside edge of your router as the default gateway. Consider disabling (un-checking) IPv6 in the properties of both network adapters to test.
    Can you temporarily disable the wireless connection
    just type
    ncpa.cpl
    into the search box after clicking the start orb
    select then right click the wireless connection and choose disable
    and then open the network and sharing center and click the red X or run the troubleshooter and see what you get in the way of information.
    With the wireless card disabled see what you can ping.
    The inside edge of your router
    ping 192.168.1.3
    your primary DNS server
    ping 209.18.47.61
    Google
    ping 64.233.169.99
    let us know the results
    Good luck
    Randy
     
  5. Tekoms

    Tekoms New Member

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    I am unable to click on public network and therefore cannot change it

    I was however able to click local area connection and access the details. posted below


    Connection-specific DNS Suffix: hot.rr.com
    Description: Broadcom NetLink (TM) Gigabit Ethernet
    Physical Address: ‎00-22-19-DD-80-E3
    DHCP Enabled: Yes
    IPv4 Address: 192.168.1.102
    IPv4 Subnet Mask: 255.255.255.0
    Lease Obtained: Wednesday, November 23, 2011 12:22:24 AM
    Lease Expires: Thursday, November 24, 2011 12:22:24 AM
    IPv4 Default Gateway: 192.168.1.3
    IPv4 DHCP Server: 192.168.1.3
    IPv4 DNS Servers: 209.18.47.61, 209.18.47.62
    IPv4 WINS Server:
    NetBIOS over Tcpip Enabled: Yes


    I disable IPv6 for both connections and disabled my wireless connection completely - after clicking the X (which reset the adapter but didnt fix anything) i tried to ping out but no dice


    Microsoft Windows [Version 6.1.7601]
    Copyright (c) 2009 Microsoft Corporation. All rights reserved.
    C:\Users\djs>ping 192.168.1.3
    Pinging 192.168.1.3 with 32 bytes of data:
    Reply from 192.168.1.102: Destination host unreachable.
    Reply from 192.168.1.102: Destination host unreachable.
    Reply from 192.168.1.102: Destination host unreachable.
    Reply from 192.168.1.102: Destination host unreachable.
    Ping statistics for 192.168.1.3:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
    C:\Users\djs>ping 209.18.47.61
    Pinging 209.18.47.61 with 32 bytes of data:
    Reply from 192.168.1.102: Destination host unreachable.
    Reply from 192.168.1.102: Destination host unreachable.
    Reply from 192.168.1.102: Destination host unreachable.
    Reply from 192.168.1.102: Destination host unreachable.
    Ping statistics for 209.18.47.61:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
    C:\Users\djs>ping 64.233.169.99
    Pinging 64.233.169.99 with 32 bytes of data:
    Reply from 192.168.1.102: Destination host unreachable.
    Reply from 192.168.1.102: Destination host unreachable.
    Reply from 192.168.1.102: Destination host unreachable.
    Reply from 192.168.1.102: Destination host unreachable.
    Ping statistics for 64.233.169.99:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
    C:\Users\djs>


    I apreciate your help so far but im about to go out of town till monday and wont be able to respond, (unless you catch me tomorrow) my pops knows a pretty good deal about networking so im going try and get some advice from him.

    if you think of anything in the mean time im all ears mate.

    happy holidays
     
  6. davehc

    davehc Microsoft MVP
    Premium Supporter Microsoft MVP

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    Confirm you cannot change your (Network and sharing Centre - Change advanced sharing settings) to Work. Home can cause similar problems to those you are experiencing.
    Also, I would recommend you try , in the properties of the Ethernet adapter,Clicking the Properties of the IP4 protocol and making sure you have "Obtain an IP address automatically" , and "Obtain DNs..etc" also on automatic.
     
    #6 davehc, Nov 23, 2011
    Last edited: Nov 24, 2011
  7. Tekoms

    Tekoms New Member

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    I do.

    three four five six seven eight nine ten words
     
  8. Trouble

    Trouble Noob Whisperer

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    :D See if you can identify the specifics regarding the Broadcom Adapter (model number). Go here Broadcom.com - Ethernet NIC Driver Downloads and download the latest driver for that card. Do what you need to do to extract the files contained in the zip archive (if needed).
    Open device manager and expand network adapter and uninstall (remove) the Broadcom when prompted choose to remove software (drivers) also.
    Right click the computer link at the top of the device manager tree and choose
    Add legacy hardware
    Next
    Install the hardware that I manually select from a list (Advanced)
    Next
    Highlight network adapters in list
    Next
    Have Disk (button)
    Browse button
    Navigate to the folder where you extracted the zipped driver file to.
    Double click the .inf file
    OK
    Highlight Broadcom Netlink (TM) Gigabit Ethernet in list (if more than one is presented).
    Click next
    And next again
    And finish
    Reboot
     
  9. Newb515

    Newb515 New Member

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    I upgraded from Windows Vista to Windows 7 and kept getting the "Unidentified Public Network" for my LAN connection. I tried every solution I could find on the internet. Enabling/Disabling network Card. Installing/Uninstalling, rolling back the driver, updating the driver. ipconfig suggestions from the command prompt. I finally found the link below which reset the TCP/IP Settings. It placed my LAN connection into the home network, and Voila - Internet!

    I hope it helps somebody else.

    Cheers!

    How to reset Internet Protocol (TCP/IP)
     
  10. aliang

    aliang Member

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    Run > Cmd.exe (as Administrator)
    > route delete 0.0.0.0

    This works for me.
    SOURCE
     

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