Windows 10: Firewall blocking most internet connectivity, except MS Edge Solved

  1.    10 Feb 2018 #1

    Firewall blocking most internet connectivity, except MS Edge


    I installed the most recent Win 10 update, and now have the most odd issue that I can't figure out. Windows Defender firewall seems to block everything except Windows Edge, from within my private home network

    When the firewall is on:
    • Firefox and Chrome do not work at all. Neither do internal internet functions like Windows update. For some reason, MS Edge connects to the web just fine
    • From CMD, I'm able to ping 127.0.0.1 and my router (192.168.1.1), but I can't ping out (for example, 8.8.8.8). The response is just "general failure" with 100% loss.

    When I switch the firewall off, everything is fine and connects without hesitation

    I am only running Windows firewall, no other antivirus or firewall software. I'm connected only to the wifi router, though IPconfig shows that the Teredo Tunneling Pseudo-Interface is also running.

    Looking at the configuration through Netsh, the only oddity I can see is that the Teredo service is configured as such:

    set state type=client servername=win1710.ipv6.microsoft.com. servervirtualip=0.0.0.0

    The only things I've done of late were the windows updates and running a new VPN client (SmartDNSProxy). I've tried to disable Teredo, and I've turned off and rebooted without the VPN running, but it doesn't seem to fix the issue. Somewhere a setting changed somewhere, and I'm going insane trying to get back to full functionality. All thanks for any sage advice.
      My ComputerSystem Spec


  2. Posts : 8,270
    Windows 10 Pro x64 Build 1803
       10 Feb 2018 #2

    Hi drdansinger. Welcome to the TenForums @drdansinger

    My bet is you VPN software has change the firewall. I would reset the firewall.

    Restore Default Windows Defender Firewall Settings in Windows 10


    Ken
      My ComputerSystem Spec

  3.    10 Feb 2018 #3

    Caledon Ken said: View Post

    My bet is you VPN software has change the firewall. I would reset the firewall.

    Restore Default Windows Defender Firewall Settings in Windows 10


    Ken
    Thanks so much. That fixed it. (I'm typing in Firefox). I exported the firewall policy before resetting it since I'm guessing I'll need to restore some settings to get all my apps working.

    Thanks for your help
      My ComputerSystem Spec


  4. Posts : 8,270
    Windows 10 Pro x64 Build 1803
       10 Feb 2018 #4

    Good idea. I think most should work and you will want to watch that your VPN software didn't already alter them.
      My ComputerSystem Spec


 

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