keepcalculator

06 Numbers and Powers

Miracast Not Supported? Fixes & Workarounds

Card No. 06·67296 · Updated · Standard formula, shown below

If your device says it doesn’t support Miracast, it usually means the hardware or drivers lack the required Wi-Fi Direct and wireless display components, or the feature is disabled. You can often fix this by updating drivers, enabling the feature in Windows, or using an HDMI adapter as a workaround. Below is a detailed look at why Miracast fails, how to check for support, and what to do when it doesn’t work.

What Is Miracast and How Does It Work?

Miracast is a wireless display standard that mirrors or extends your screen to a TV, projector, or monitor without a physical cable. It works over a peer-to-peer Wi-Fi Direct connection, meaning it doesn’t need a router or an internet connection. The sending device (like a Windows laptop or Android phone) compresses the video and audio, then streams it directly to the receiving device (like a smart TV or a Miracast receiver).

For Miracast to work, both devices must support the standard. Most Windows laptops from 2013 onward, many Android phones, and most smart TVs from major brands include Miracast support. However, iPhones and iPads do not support Miracast natively—they use AirPlay instead. Similarly, some budget Android phones and older Windows devices lack the necessary hardware or drivers.

Why Does My Device Say “Doesn’t Support Miracast”?

When you try to connect via Miracast and get an error like “This device doesn’t support receiving Miracast,” it means the receiving device (the TV or projector) cannot accept the incoming wireless display stream. This can happen for several reasons:

  • Missing Wi-Fi Direct support: Miracast requires Wi-Fi Direct, which is not present on all Wi-Fi adapters. Some older or budget adapters only support standard Wi-Fi, not the peer-to-peer mode needed for Miracast.
  • Outdated or missing drivers: The wireless display feature depends on specific drivers for the Wi-Fi adapter and the graphics card. If these are outdated, Windows may not see the device as Miracast-capable.
  • Feature disabled in BIOS or Windows: Some manufacturers disable Miracast by default to save power or because of licensing costs. It can be turned off in the BIOS or in Windows settings.
  • Hardware limitations: The device may simply lack the required hardware. Miracast needs a Wi-Fi adapter that supports Wi-Fi Direct and a graphics driver that supports wireless display output. Some low-end devices omit these to cut costs.
  • TV or receiver not Miracast-certified: Not all smart TVs support Miracast. Some use proprietary standards like Apple AirPlay, Google Chromecast, or Samsung’s Smart View, which are not compatible with Miracast.

How to Check if Your Device Supports Miracast

Before troubleshooting, confirm whether your device actually supports Miracast. On Windows 10 or 11, you can check with a simple command:

  1. Press Windows Key + R to open the Run dialog.
  2. Type dxdiag and press Enter.
  3. Click Save All Information and save the file to your desktop.
  4. Open the saved file and look for the line that says Miracast. It will say either “Available” or “Not Available.”

If it says “Not Available,” your Wi-Fi adapter or graphics driver does not support Miracast. If it says “Available,” the issue is likely on the receiving end or with the connection itself.

On Android, you can usually check by going to Settings > Connected devices > Cast or Settings > Display > Cast. If you see an option to enable wireless display, your phone supports it. On smart TVs, look for a “Screen Mirroring” or “Miracast” option in the settings menu. If it’s not there, the TV likely doesn’t support Miracast.

How to Fix Miracast Not Supported Errors

If your device does support Miracast but still shows an error, try these steps in order:

  1. Update your drivers: Go to Device Manager, expand “Network adapters” and “Display adapters,” right-click each, and select “Update driver.” Choose “Search automatically for drivers.” If Windows doesn’t find new ones, check the manufacturer’s website for the latest Wi-Fi and graphics drivers.
  2. Enable Miracast in Windows: Open the Connect app (search for it in the Start menu). If it says “Your device doesn’t support Miracast,” you may need to enable the wireless display feature. Go to Settings > Apps > Optional features, click “Add a feature,” search for “Wireless Display,” and install it. This adds the Miracast receiver capability to your PC.
  3. Check the BIOS: Restart your PC and enter the BIOS (usually by pressing F2, F10, or Del during startup). Look for a setting called “Wireless Display,” “Wi-Fi Direct,” or “Miracast.” Enable it if it’s disabled.
  4. Restart the Wi-Fi adapter: In Device Manager, right-click your Wi-Fi adapter and select “Disable device.” Wait a few seconds, then right-click again and select “Enable device.” This resets the adapter and can fix temporary glitches.
  5. Use the Windows Wireless Display app: On Windows 11, go to Settings > System > Projecting to this PC. Make sure “Some Windows and Android devices can project to this PC” is selected. On Windows 10, the equivalent is under Settings > System > Projecting to this PC.
  6. Try a different receiving device: If you’re trying to connect to a TV, test with another TV or a dedicated Miracast receiver (like a Microsoft Wireless Display Adapter). This isolates whether the problem is with the sender or the receiver.

Alternatives When Miracast Isn’t Supported

If your device truly doesn’t support Miracast, or you can’t get it to work, you still have several options for wireless screen mirroring:

  • Chromecast: Google’s Chromecast uses a different protocol (Google Cast) that works with Chrome browser, Android, and iOS. It doesn’t require Wi-Fi Direct; it uses your home Wi-Fi network. You can cast a tab from Chrome or mirror your entire Android screen.
  • AirPlay: If you have an Apple device, AirPlay works with Apple TV and many smart TVs that support AirPlay 2. It’s built into iOS and macOS, so no extra hardware is needed if your TV supports it.
  • HDMI cable: The simplest and most reliable option. Connect your device to the TV with an HDMI cable. For phones and tablets, you may need a USB-C to HDMI adapter. This gives you a direct, lag-free connection.
  • DLNA: Many smart TVs support DLNA, which lets you stream media files (videos, photos, music) from your phone or PC to the TV, but it doesn’t mirror your screen—it only plays media files.
  • Third-party apps: Apps like AirDroid or TeamViewer can mirror your screen over Wi-Fi, but they often require an app on both devices and may have lag or quality issues.

Common Misconceptions About Miracast

One common misconception is that Miracast requires an internet connection. It doesn’t—it uses Wi-Fi Direct, which creates a direct connection between the two devices. However, some devices may disable Wi-Fi Direct when connected to a 5GHz network, or the TV may only support 2.4GHz, causing connection issues.

Another misconception is that all smart TVs support Miracast. Many do, but not all. Some manufacturers use their own proprietary mirroring standards. For example, Samsung uses “Smart View,” which is based on Miracast but may not be compatible with all devices. LG uses “Screen Share,” which is also Miracast-based but can have compatibility issues with certain phones.

Also, Miracast is not the same as Chromecast. Chromecast works by sending a URL to the TV, which then fetches the content itself. Miracast sends a live video stream from your device. This means Miracast uses more battery and can have more lag, but it can mirror anything on your screen, including apps that don’t support casting.

Frequently Asked Questions

Why does my Windows 11 say “This device doesn’t support receiving Miracast”?

This error appears when the Wi-Fi adapter or graphics driver doesn’t support Miracast, or the feature is disabled. First, update your drivers. If that doesn’t work, install the “Wireless Display” optional feature in Windows Settings. If it still fails, your hardware may genuinely not support Miracast, and you’ll need an alternative like Chromecast or an HDMI cable.

Can I add Miracast support to an old laptop?

Sometimes. If your laptop has a Wi-Fi adapter that supports Wi-Fi Direct, you might be able to enable Miracast by updating drivers or installing the Wireless Display feature. However, if the adapter doesn’t support Wi-Fi Direct, you cannot add Miracast without replacing the Wi-Fi card, which is rarely possible in laptops. An external Miracast adapter (USB) exists but is uncommon and often unreliable.

Does Miracast work without internet?

Yes. Miracast uses Wi-Fi Direct, which creates a direct peer-to-peer connection between the sender and receiver. No router or internet connection is needed. However, if your device automatically disables Wi-Fi Direct when connected to a network, you may need to disconnect from Wi-Fi temporarily to use Miracast.

Why does my TV not show up in the Miracast list?

Your TV may not support Miracast, or the feature may be disabled on the TV. Check the TV’s settings for “Screen Mirroring” or “Miracast” and enable it. Also, ensure the TV is not already connected to another device. If the TV doesn’t have a Miracast option, it likely doesn’t support the standard.

Is Miracast better than Chromecast?

It depends on your needs. Miracast mirrors your entire screen with no additional apps, but it can have higher latency and uses more battery. Chromecast is more efficient for streaming video because it offloads the work to the TV, but it doesn’t mirror your screen unless you use the “Cast screen” feature, which can be laggy. For presentations or showing your phone screen, Miracast is fine; for watching Netflix, Chromecast is better.

Can I use Miracast with an iPhone?

No. iPhones and iPads do not support Miracast. They use AirPlay, which works with Apple TV and AirPlay-compatible smart TVs. If you need to mirror an iPhone to a non-AirPlay TV, you’ll need an HDMI adapter or a third-party app that uses Chromecast or DLNA.

Related

Method: the standard formula for this calculation, rounded as each result states. See how the calculators work or report an error.

More cards in this drawer

The whole Numbers and Powers drawer →