Windows 11 Firewall blocks APO communication

  • Thread starter Thread starter Dmitry__Zhukov
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Dmitry__Zhukov

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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

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