How do I resolve error 651 on a new Windows 8 installation?

Anonymous
2012-11-08T04:36:31+00:00

I installed Windows 8 Pro on a Zotac Zbox AD03 3 days ago. The installation went fine and everything, including the network and internet, worked just fine. The network contains 4 Windows 7 machines, a network printer, a Buffalo NAS, a Windows Home Server, a 16 port switch and a Motorola combo cable modem (DOCSIS 3.0) and router. The new computer with Windows 8 could see everything and appeared to function perfectly with normal internet access. After powering it off for the night I restarted it the next morning and found it could only see the Windows Home Server and one of the Windows 7 machines. It reported that it was not attached to a network and when I tried to connect I got error 651. I did a complete new install and it still could only see the Windows Home Server and the same other Windows 7 machine and still get the error 651 message. What could have happened during that power down/restart to cause it to lose network connectivity? How do I fix it?

Windows for home | Previous Windows versions | Internet and connectivity

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  1. Anonymous
    2014-06-14T20:03:24+00:00

    I'Ve read and heard from others that upgrading to 8.1 with a clean install of 8 resulted in not having the problem again  i'm unhappy to hear that you still have the problem  did you install 8.1 or upgrade from 8?  curious to note that a lot of these pro lems are with Lenovo computers ; especially laptops

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  2. Anonymous
    2014-06-14T22:40:42+00:00

    it was a upgrade from 8. to 8.1 its got to be the lenovo laptop that is a load of ****. i have a windows 8 nokia phone that works anytime anyplace anywhere. on the windows 8 style format .

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  3. Anonymous
    2014-08-29T15:11:47+00:00

    This was very helpful.

    What I discovered to be causing my problem was the AVG firewall. The Microsoft Firewall is perfectly adequate. The only way I was able to turn off my AVG firewall was to downgrade to the free version.

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  4. Anonymous
    2014-09-19T21:12:38+00:00

    A clarification to my previous post, this Error 651 occurs on WIFI connections, not wired.

    I have the same problem on a wired connection.

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  5. Anonymous
    2015-02-01T09:35:36+00:00

    Hi Iam having the exact same problem tried everything mentioned above nothing is working this happened to me last month aand I backed up and restored my pc to factory settings that was the only thing that worked then after I put all my programs back on my computer it updated and now

     I can't access my internet again it's not my internet connection it works on everything that doesn't have windows 8 is there anyone who I can contact to fix this problem with the upgrade it's ridiculously mentally frustrating

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