Troubleshooting Miracast Compatibility Issues After Windows 11 Update 26100.4770 and Beyond
An in-depth look at recent Miracast disruptions, their causes, and potential workarounds
Introduction
Recent updates to Windows 11 Pro, specifically builds starting from 26100.4770 (the 24H2 Feature Update), have introduced a critical compatibility issue affecting Miracast connectivity — notably with certain third-party wireless display receivers like the Aurzen ZIP Mini Projector. Despite successful pairing and connection processes, users are facing a persistent black screen on the receiver, rendering the feature unusable.
This article aims to explore the nature of this problem, the extent of its impact, tested troubleshooting steps, and insights into potential causes, offering clarity for affected users and IT professionals.
Scope and Affected Configurations
- Operating System: Windows 11 Pro, build 26100.4770 and newer
- Hardware: Multiple devices including Acer Nitro AN515-57, older Lenovo Ideapad, and other systems with Wi-Fi 6/Intel/NVIDIA components
- Display Receivers: Aurzen ZIP Mini Projector (Wi-Fi Miracast support), LG Smart TVs (Miracast-enabled)
- Firmware: Updated to latest available versions on the Aurzen receiver
Understanding the Issue
Post-update, the typical Miracast workflow appears to complete seamlessly:
- The system recognizes and establishes the connection with the wireless display
- Miracast negotiation logs indicate successful handshakes
- Both sender (PC) and receiver (display device) report successful connection status
However, the actual display output remains a black screen. Sometimes only the desktop background is visible, with no active window or application view.
This problem persists across multiple hardware setups and occurs regardless of the Miracast mode (duplicate or extended display).
Testing and Troubleshooting Attempts
Extensive testing has ruled out several common causes:
- Firmware issues: The Aurzen ZIP firmware was recently upgraded to the latest version, yet the problem remains.
- Driver integrity: Complete driver removal and reinstallation (including NVIDIA, Intel graphics, and Realtek wireless drivers) did not resolve the issue.
- System configurations: Hyper-V, WSL2, and network interfaces such as vEthernet were thoroughly reconfigured and reset.
- Clean boot procedures: Disabling third-party services and applications did not yield improvement.
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