Windows 11 Miracast · Original

If you see this error, it is usually a driver issue.

Miracast is a wireless display standard that functions as "HDMI over Wi-Fi," allowing you to mirror your Windows 11 PC screen to a TV, projector, or another monitor without physical cables. Unlike Chromecast or AirPlay, Miracast often establishes a direct peer-to-peer connection between devices, meaning it can work even without a local Wi-Fi router. How to Check if Your PC Supports Miracast windows 11 miracast

Sometimes video streams perfectly, but audio fails to switch to the TV. If you see this error, it is usually a driver issue

Before attempting to cast, verify that your hardware is compatible: How to Check if Your PC Supports Miracast

| Component | Requirement | |-----------|-------------| | Wi-Fi Adapter | Wi-Fi Direct support + or later | | GPU | Hardware-accelerated H.264 encoder (Intel Quick Sync, AMD VCE, NVIDIA NVENC) | | Drivers | WDDM 2.0+ with Miracast support exposed |

However, the industry is slowly moving to (for smart home) and WebRTC (for seamless internet-based casting). Miracast remains the only truly local, direct, driver-level display extension.

| Aspect | Typical Performance | |--------|---------------------| | Latency | 50–150ms (depends on Wi-Fi, codec, receiver) | | Max resolution | 4K @ 30fps (H.265); 1080p @ 60fps (H.264) | | Audio lag | Often 80–200ms (lip-sync may drift) | | Max range | ~10m (30ft) line of sight; less through walls | | Battery impact | 15–25% higher drain (GPU + Wi-Fi Direct) |