Windows 10: Windows 11 blocks all communications

Discus and support Windows 11 blocks all communications in Windows 10 Gaming to solve the problem; Since yesterday all websites "unexpectedly closed connection", I can not open any web site in any browser and my trading software is not connecting... Discussion in 'Windows 10 Gaming' started by GreyTemples, Dec 5, 2023.

  1. Windows 11 blocks all communications


    Since yesterday all websites "unexpectedly closed connection", I can not open any web site in any browser and my trading software is not connecting Ninja Trader and Interactive Brokers Trading Station.Windows 11 insider program on the other PC this one here which I use for this has an operating system, called Windows 10; I had a security update MS Defender KB 2267602 vers 1.401.1618.0 and I was not actively doing work on that pc but I heard my trading programs "connection lost" messages and I can not open any web pages; I don't know how soon after this update the problems started or at wh

    :)
     
    GreyTemples, Dec 5, 2023
    #1

  2. Windows 11 Firewall blocks APO communication

    Hello there!

    Seems like I'm missing some important change of Windows 11 Firewall.

    We have an application that consists of 2 parts: windows application (APP) and audio processing object (APO). They communicate between each other through gRPC client-server model on localhost - works like a charm on Windows 8 and 10.
    However on Windows 11, APO port (127.0.0.1:10000) is "FILTERED" by the firewall. APO part cannot connect to APP (127.0.0.1:20000), and APP cannot connect to APO (connection failed, deadline exceeded, etc.).
    It only became apparent after I switched to Port Query tool, because netstat was showing this port as "LISTENING".

    I've tried:

    • enabling Firewall logging and confirming that connection is dropped (but why?)
    • adding inbound/outbound rules for this port, adding our app and AudioDG.exe (which loads our APO) to the exception list - no luck.
    • turning firewall off for all profiles via Windows settings - same result.
    But if I disable firewall the hard way (through mpssvc's "START" registry key value) - everything starts working again, port is open and "LISTENING".

    Am I missing something obvious or there are new security rules that have to be applied to APO dll on Windows 11? Is there any way to create an exception for our APO?

    Thanks in advance!

    EDIT:
    By doing additional WFP logging, it turned out that there's a blocking filter:
    ID = 79647
    Name = "WSH Default Inbound Block"
    Description = "Blocks all inbound traffic for services who have been network hardened".

    It seems like this rule overrides any inbound allowing rule I create.
    How can one make an exception from this filter?
     
    Dmitry__Zhukov, Dec 5, 2023
    #2
  3. windows xp installation and dual core am

    could someone please list the steps they follow to install windows with a dual core processor and windows xp service pack to. I'm reletively new to amd dual core and i feel i'm missing a step. All help will be appreciated. thanx
     
    exodusprime1337, Dec 5, 2023
    #3
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Windows 11 blocks all communications

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