1.    26 Jun 2016 #1
    Join Date : Dec 2015
    Hastings, England
    Posts : 5
    Windows 10 64 bit

    Wifi suddenly stopped working - strange result

    Wifi stopped working suddenly on my desktop. Now I have to connect with cable to the router but when I open Network Connections it still says the wifi is connected and working. The Ethernet connection has the name of the Wifi SSID.

    If I open the details of the wifi connection it says there is no0 IPV4 or IPV6 connectivity although these are checked.

    What has happened?

    Click image for larger version. 

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      My System SpecsSystem Spec

  2.    26 Jun 2016 #2
    Join Date : Jan 2015
    UK, Midlands
    Posts : 5,786
    Win 10 Pro (1607)

    Hi I recall that while my PC was on over lunch I returned to find those protocols had suddenly and without apparent reason vanished.

    Why? Hmm, maybe there's a clue in your event log. Sorry, my crystal ball is down for scheduled maintenance

    Easy option (hopefully), avoiding use of a possible series of commands:
    Download and install Tweaking.com's repair tool (free), lots of cautious stages beforehand. Observe accordingly.
    Select ONLY network connection repair.
    Run the repair.

    If that doesn't work, here's a set of instructions for repairs:

    1. Run the built-in Troubleshooter

    Right click the network icon on the Taskbar
    Pick Troubleshoot problems
    Select Identify and repair network problems
    Follow instructions in the troubleshooter

    1. Reset networking

    Launch Command Prompt (Admin)
    Copy the lines in the code box below
    Right click in the Command Prompt window to paste
    netsh winsock resetnetsh int ip resetnetsh int ipv4 resetnetsh int ipv6 resetipconfig /renewipconfig /flushdns
    Restart your machine

    1. Disable IPv6

    Open Network Connections
    Right click on the affected adapter(s) (Wifi, Ethernet, or each one of them)
    Select Properties
    Scroll down to Internet Protocol version 6 (TCP/IPv6)
    Remove the check mark
    Press OK

    Restart your machine

    1. Reinstall TCP/Pv4

    Launch Command Prompt (Admin)
    enter the following command
    netsh int ipv4 install

    Restart your machine

    1. Restart Your Network Adapters

    Open Network Connections
    Right click the affected adapter(s) (Wifi, Ethernet, or each one of them)
    Pick Disable

    Restart your machine

    Open Network Connections
    Right click the affected adapter(s) (Wifi, Ethernet, or each one of them)
    Pick Enable
      My System SpecsSystem Spec

  3.    26 Jun 2016 #3
    Join Date : Jun 2014
    Posts : 3,904
    Windows 10 Pro

    Check in Device Manager and see if Windows updated your network adapter driver. I started losing my wireless connection in the Insider build of Win 10. It turned out to be a new driver Windows was installing for my Ralink RT3290 card. I had to go back to the older driver to get my connection to work again.
      My System SpecsSystem Spec

  4.    26 Jun 2016 #4
    Join Date : Sep 2014
    Posts : 2,889
    Windows 10 Pro

    What version of Windows 10 do you have? If it's a recent version, try using the "Network Reset" in Settings->Network & Internet
      My System SpecsSystem Spec


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