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ipv6 no internet access

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  1. #1



    Junior Member

    Join Date : Feb 2013
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    Windows 8
    Austria

    ipv6 no internet access


    Hello everyone!

    i bought a windows 8 netbook (Sony VAIO SV-E1112M1E) and in the beggining everything worked just fine.
    a few days ago the problem started, although it says that i am connected to the internet i cant open a single page with the browser neither in desktop nor metro mode. when i open the wireless network connection status i get:

    ipv4 connectivity: internet
    ipv6 connectivity: no network access
    (im translating those terms, i hope i got them right)

    ive been sitting for hours and cant find a solution. i find only articles about windows 7 and this FixIt tool doesnt work on 8.

    i tried:
    checking/unchecking the: internetprotocoll Version 6 option
    editing the registry as suggested in How to disable IP version 6 or its specific components in Windows

    windows xp laptop works just fine, ps3 wphone also.
    router Thompson TWG870U

    im no expert on computers but i know my way around.
    help would be much appreciated!!
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  2. #2
    TerryE's Avatar

    Member

    Join Date : May 2011
    Cincinnati, Ohio
    Posts : 711
    Windows 7 x64
    USA us ohio


    It's very likely that your network (or some component of it) does not support IPv6. You don't really need it. I can't say why you are unable to connect to the internet despite the status you see: it could be a driver issue, or something else.

    When you type ipconfig /all in a command window what do you see? Compare that to the same thing from your XP machine. If you post the results here we may be able to help you do more troubleshooting.

    To disable IPv6 you don't need to edit the registry: just edit the properties of your local area network connection and uncheck the IPv6 box.

    Windows XP does not use IPv6.
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  3. #3


    PCG

    Member

    Join Date : Jan 2013
    Posts : 22
    Windows 8 Pro


    Stellar, I'm not sure what could be causing your problem (like you, I'm not an expert), but if you check-out the snip in my post from yesterday regarding my Slow WiFi fix, you can see that my IPv6 says "No Internet Access," as well. But, if you read my post, you can also see that I do indeed have access to the internet via the IPv4. I'm just wondering if instead of an IPv6 issue, something else is causing your problem?

    I'm sure one of the experts here can help. Good luck.
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  4. #4



    Junior Member

    Join Date : Feb 2013
    Posts : 8
    Windows 8
    Austria


    thank you for your quick answers!
    ill start reading your post PCG

    i copied what i got from ipconfig /all:

    that is the one that is not working(its in german if you need help with some words tell me)
    Microsoft Windows [Version 6.2.9200]
    (c) 2012 Microsoft Corporation. Alle Rechte vorbehalten.

    C:\Users\Ebru>ipconfig /all

    Windows-IP-Konfiguration

    Hostname . . . . . . . . . . . . : VAIO
    Primäres DNS-Suffix . . . . . . . :
    Knotentyp . . . . . . . . . . . . : Hybrid
    IP-Routing aktiviert . . . . . . : Nein
    WINS-Proxy aktiviert . . . . . . : Nein

    Ethernet-Adapter Bluetooth-Netzwerkverbindung:

    Medienstatus. . . . . . . . . . . : Medium getrennt
    Verbindungsspezifisches DNS-Suffix:
    Beschreibung. . . . . . . . . . . : Bluetooth-Gerät (PAN)
    Physische Adresse . . . . . . . . : 08-3E-8E-CF-4E-28
    DHCP aktiviert. . . . . . . . . . : Ja
    Autokonfiguration aktiviert . . . : Ja

    Drahtlos-LAN-Adapter LAN-Verbindung* 1:

    Medienstatus. . . . . . . . . . . : Medium getrennt
    Verbindungsspezifisches DNS-Suffix:
    Beschreibung. . . . . . . . . . . : Virtueller Microsoft-Adapter für direktes
    WiFi
    Physische Adresse . . . . . . . . : 1A-3E-8E-CF-4E-27
    DHCP aktiviert. . . . . . . . . . : Ja
    Autokonfiguration aktiviert . . . : Ja

    Drahtlos-LAN-Adapter WiFi:

    Verbindungsspezifisches DNS-Suffix:
    Beschreibung. . . . . . . . . . . : Qualcomm Atheros AR9485WB-EG Wireless Net
    work Adapter
    Physische Adresse . . . . . . . . : 08-3E-8E-CF-4E-27
    DHCP aktiviert. . . . . . . . . . : Ja
    Autokonfiguration aktiviert . . . : Ja
    IPv4-Adresse . . . . . . . . . . : 192.168.0.13(Bevorzugt)
    Subnetzmaske . . . . . . . . . . : 255.255.255.0
    Lease erhalten. . . . . . . . . . : Donnerstag, 07. Februar 2013 17:50:23
    Lease läuft ab. . . . . . . . . . : Donnerstag, 14. Februar 2013 18:21:40
    Standardgateway . . . . . . . . . : 192.168.0.1
    DHCP-Server . . . . . . . . . . . : 192.168.0.1
    DNS-Server . . . . . . . . . . . : 212.186.211.21
    195.34.133.21
    NetBIOS über TCP/IP . . . . . . . : Aktiviert

    Ethernet-Adapter Ethernet:

    Medienstatus. . . . . . . . . . . : Medium getrennt
    Verbindungsspezifisches DNS-Suffix:
    Beschreibung. . . . . . . . . . . : Realtek PCIe GBE Family Controller
    Physische Adresse . . . . . . . . : 54-53-ED-B4-42-A7
    DHCP aktiviert. . . . . . . . . . : Ja
    Autokonfiguration aktiviert . . . : Ja

    C:\Users\Ebru>



    that is the working laptop
    Microsoft Windows XP [Version 5.1.2600]
    (C) Copyright 1985-2001 Microsoft Corp.
    C:\Documents and Settings\Stelios>ipconfig /all
    Windows IP Configuration
    Host Name . . . . . . . . . . . . : Mpriki
    Primary Dns Suffix . . . . . . . :
    Node Type . . . . . . . . . . . . : Unknown
    IP Routing Enabled. . . . . . . . : No
    WINS Proxy Enabled. . . . . . . . : No
    Ethernet adapter Wireless Network Connection:
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Intel(R) PRO/Wireless 3945ABG Networ
    k Connection
    Physical Address. . . . . . . . . : 00-13-02-2D-64-15
    Dhcp Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes
    IP Address. . . . . . . . . . . . : 192.168.0.10
    Subnet Mask . . . . . . . . . . . : 255.255.255.0
    Default Gateway . . . . . . . . . : 192.168.0.1
    DHCP Server . . . . . . . . . . . : 192.168.0.1
    DNS Servers . . . . . . . . . . . : 212.186.211.21
    195.34.133.21
    Lease Obtained. . . . . . . . . . : 07 February 2013 15:50:30
    Lease Expires . . . . . . . . . . : 14 February 2013 15:50:30
    C:\Documents and Settings\Stelios>
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  6. #5
    chev65's Avatar

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    Join Date : Jan 2010
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    First, this has absolutely nothing to do with IPv6, which by the way, always says no internet access because it's only used internally with Windows at this point. Do not ever disable IPv6 as there are components in Windows that rely on it's functionality.

    This problem is usually from either Winsock or the TCP/IP stack requiring a reset which is a very common problem.

    Run the following two commands one at time, use an elevated command prompt, hit enter after each command "in bold". Then restart your machine.

    netsh winsock reset catalog (reset winsock entries)

    netsh int ip reset reset.log hit (reset TCP/IP stack)
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  7. #6



    Junior Member

    Join Date : Feb 2013
    Posts : 8
    Windows 8
    Austria


    thank you for your replies, unfortunately those 2 commands did not solve the problem.
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  8. #7
    chev65's Avatar

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    Quote Originally Posted by Stellar View Post
    thank you for your replies, unfortunately those 2 commands did not solve the problem.
    That's good, it narrows the problem down,. You do show a valid IP so something is blocking the connection.

    Most likely your Anti virus or third party firewall is causing the problem. Which one are you using?

    Starting up in safe mode with networking is a good way to determine if the problem is caused from an installed program, if the problem goes away in safe mode then something was installed that is blocking the connection.

    And the internet access for IPv4 and no access for IPv6 is perfectly normal.
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  9. #8
    TerryE's Avatar

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    Cincinnati, Ohio
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    Windows 7 x64
    USA us ohio


    *Some* Windows components use IPv6 for *some* functions (clustering is an example), but we disable IPv6 routinely on our systems and we've seen no ill effects.

    Are you using MAC filtering on your wireless router? If so, you would get a valid IP configuration from your router but no traffic would be permitted through to the internet.

    Check your router and see if it only allows certain MAC addresses to connect. If it does, you can either disable MAC filtering or add the MAC address of your wireless adapter (08-3E-8E-CF-4E-27) to the list of allowed addresses.
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  10. #9
    chev65's Avatar

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    Quote Originally Posted by TerryE View Post
    *Some* Windows components use IPv6 for *some* functions (clustering is an example), but we disable IPv6 routinely on our systems and we've seen no ill effects.

    Are you using MAC filtering on your wireless router? If so, you would get a valid IP configuration from your router but no traffic would be permitted through to the internet.

    Check your router and see if it only allows certain MAC addresses to connect. If it does, you can either disable MAC filtering or add the MAC address of your wireless adapter (08-3E-8E-CF-4E-27) to the list of allowed addresses.
    I'm really not here to argue the semantics of using IPv6. But if you want to learn more about what it does maybe you should read up on the subject. As you can see many components of Windows will cease to function if you turn off IPv6, including Homegroups.

    The Argument against Disabling IPv6
    It is unfortunate that some organizations disable IPv6 on their computers running Windows Vista or Windows Server 2008, where it is installed and enabled by default. Many disable IPv6-based on the assumption that they are not running any applications or services that use it. Others might disable it because of a misperception that having both IPv4 and IPv6 enabled effectively doubles their DNS and Web traffic. This is not true.
    From Microsoft's perspective, IPv6 is a mandatory part of the Windows operating system and it is enabled and included in standard Windows service and application testing during the operating system development process. Because Windows was designed specifically with IPv6 present, Microsoft does not perform any testing to determine the effects of disabling IPv6. If IPv6 is disabled on Windows Vista, Windows Server 2008, or later versions, some components will not function. Moreover, applications that you might not think are using IPv6—such as Remote Assistance, HomeGroup, DirectAccess, and Windows Mail—could be.
    Therefore, Microsoft recommends that you leave IPv6 enabled, even if you do not have an IPv6-enabled network, either native or tunneled. By leaving IPv6 enabled, you do not disable IPv6-only applications and services (for example, HomeGroup in Windows 7 and DirectAccess in Windows 7 and Windows Server 2008 R2 are IPv6-only) and your hosts can take advantage of IPv6-enhanced connectivity.

    Read more. http://technet.microsoft.com/en-us/m....cableguy.aspx
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  11. #10



    Junior Member

    Join Date : Feb 2013
    Posts : 8
    Windows 8
    Austria


    when starting in safe mode the internet works just fine!
    im using avast, since it was the only free antivir for windows 8 when i was looking for one. so i guess some software is causing the problem (never had to use safe mode till now, you never stop to learn )
    ive never changed any MAC setting on the router!

    EDIT: there is an option to deactivate the antivirus for a few mins. i tried loading a page on the browser while avast was of but the page didnt load!
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