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Wireless connected, but says "Idenitifying... Unidentified Network. No internet access"

    Question

  • I live on a college campus in student housing, and instead of supplying ethernet ports for wired connections the university provides free wireless for the campus and for residents.

    The problem I am having is that despite a strong signal from the school's wireless connection, I get an error (the yellow triangle with the exclamation point) when it connects saying that the network is unidentified with no internet access.

    The troubleshooter is never able to fix it, and only every now and then does disabling and re-enabling (usually 7-10 times) my wireless network adapter or restarting Windows eventually allow me to connect.

    I spoke with my school's IT department, and this appears to be a Windows issue. They looked at all my information (IP address, etc) and said that everything was working properly on their end. They said there must be something in my settings that prevents my computer from connecting to their network. It's strange because the network comes in at full signal strength, yet when it does connect it says "No Internet Access." 

    I was at a coffee shop the other day and I got the same error when I tried to connect to their wireless. This hasn't happened before. Luckily, I was able to connect after enabling/disabling the wireless adapter several times.  I also had this same issue when I tried to connect to my wireless at work yesterday.

    Here's the info from my command prompt:

    Microsoft Windows [Version 6.1.7600]
    Copyright (c) 2009 Microsoft Corporation.  All rights reserved.

    C:\Users\Josh Cox>getmac -v

    Connection Name Network Adapter Physical Address    Transport Name

    =============== =============== =================== ============================
    ==============================
    Local Area Conn Marvell Yukon 8 00-25-64-7C-44-00   Media disconnected

    Wireless Networ Dell Wireless 1 70-1A-04-95-4A-C5   \Device\Tcpip_{E4BF9892-648F
    -4FD6-8AA9-1F189D91686D}
    Local Area Conn Cisco AnyConnec N/A                 Hardware not present


    C:\Users\Josh Cox>ipconfig

    Windows IP Configuration


    Wireless LAN adapter Wireless Network Connection:

       Connection-specific DNS Suffix  . : usc.edu
       Link-local IPv6 Address . . . . . : fe80::5c5:d0ea:5a5:7c9f%29
       IPv4 Address. . . . . . . . . . . : 204.140.195.42
       Subnet Mask . . . . . . . . . . . : 255.255.248.0
       Default Gateway . . . . . . . . . : 172.16.8.1

    Ethernet adapter Local Area Connection:

       Media State . . . . . . . . . . . : Media disconnected
       Connection-specific DNS Suffix  . : usc.edu

    Tunnel adapter Reusable Microsoft 6To4 Adapter:

       Media State . . . . . . . . . . . : Media disconnected
       Connection-specific DNS Suffix  . :

    Tunnel adapter Local Area Connection* 11:

       Media State . . . . . . . . . . . : Media disconnected
       Connection-specific DNS Suffix  . :

    Tunnel adapter 6TO4 Adapter:

       Media State . . . . . . . . . . . : Media disconnected
       Connection-specific DNS Suffix  . :

    Tunnel adapter Teredo Tunneling Pseudo-Interface:

       Media State . . . . . . . . . . . : Media disconnected
       Connection-specific DNS Suffix  . :

    Tunnel adapter Local Area Connection* 9:

       Media State . . . . . . . . . . . : Media disconnected
       Connection-specific DNS Suffix  . :

    Tunnel adapter Local Area Connection* 13:

       Media State . . . . . . . . . . . : Media disconnected
       Connection-specific DNS Suffix  . :

    Tunnel adapter Local Area Connection* 12:

       Media State . . . . . . . . . . . : Media disconnected
       Connection-specific DNS Suffix  . :

    Tunnel adapter Local Area Connection* 14:

       Media State . . . . . . . . . . . : Media disconnected
       Connection-specific DNS Suffix  . :

    Tunnel adapter Local Area Connection* 15:

       Media State . . . . . . . . . . . : Media disconnected
       Connection-specific DNS Suffix  . :

    Tunnel adapter isatap.usc.edu:

       Media State . . . . . . . . . . . : Media disconnected
       Connection-specific DNS Suffix  . :

    Tunnel adapter Local Area Connection* 18:

       Media State . . . . . . . . . . . : Media disconnected
       Connection-specific DNS Suffix  . :

    Tunnel adapter Local Area Connection* 20:

       Media State . . . . . . . . . . . : Media disconnected
       Connection-specific DNS Suffix  . :

    C:\Users\Josh Cox>^A

    C:\Users\Josh Cox>getmac -v

    Thursday, June 17, 2010 7:00 PM

Answers

  • Hi,

     

    This issue can occur by incompatible Wireless adapter driver or incorrect network settings. To troubleshoot the issue, please perform the following steps.

     

    1. Upgrade the Wireless adapter driver to the latest one.

     

    2. Please run the following command in an elevated command prompt in Windows 7:

     

    netsh interface tcp set global rss=disabled

    netsh interface tcp set global autotuninglevel=disabled

    netsh int ip set global taskoffload=disabled

     

    3. Disable SNP in Windows 7 by setting Registry as following:

     

    Note: Please perform a full-system backup first.

     

    [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters]

    EnableTCPChimney=dword:00000000

    EnableTCPA=dword:00000000

    EnableRSS=dword:00000000

     

    If the keys do not exist, please create them and assign the value.

     

    An update to turn off default SNP features is available for Windows Server 2003-based and Small Business Server 2003-based computers

     

    Hope this helps.

    Thanks,

    Novak

    • Marked as answer by Novak Wu Monday, June 28, 2010 2:00 AM
    Friday, June 18, 2010 2:24 AM