Roku screen mirroring not working comes down to one of four things: Roku is blocking the request, the phone or computer is using the wrong mirroring method, the devices are on the wrong network, or AirPlay/Miracast needs a reset. Start on the Roku, because one blocked prompt can stop every new attempt. Then use the exact path for Windows 11, iPhone, iPad, Mac, or Samsung Android.
1. Allow Roku screen mirroring
- 1.Press Home on the Roku remote.
- 2.Open Settings > System > Screen mirroring.
- 3.Select Screen mirroring mode.
- 4.Choose Prompt or Always allow.
- 5.Leave Never allow off, because it blocks new mirroring requests.
Tip: use Prompt on a shared TV and Always allow only for devices you trust.
2. Clear a blocked phone or computer
This fixes a Roku that stopped responding after someone chose Block or Always block.
On Roku, go to Home > Settings > System > Screen mirroring.
Next, open Screen mirroring devices.
Manage the saved choice for the phone, tablet, or PC marked Always block.
Start mirroring again from the phone or computer.
When the Roku prompt appears, choose Allow for one session or Always allow for future sessions.
3. Confirm your device supports the right mirroring method
Check your Roku model and software at Home > Settings > System > About before chasing phone or computer settings.
Supported Roku streaming players and Roku TV models receive Miracast-style mirroring from compatible Android and Windows devices; Roku Express 3700 and Roku Express+ 3710 do not, and Roku Express+ 3910 mirrors only over HDMI output, not composite A/V.
Windows 11 needs Miracast support, while Pixel and Nexus devices on Android 6.0 or later do not have a current vendor-supported Roku Miracast path.
Skip Windows 8.1 and Intel WiDi fixes in July 2026, because both are retired.
Windows 10 reached end of support on October 14, 2025, so upgrading is the better long-term move, but its mirroring path still works and Roku still documents it: open Action center from the taskbar, select Connect, then pick the Roku, and if Action center is missing use Settings > System > Display > Connect to a wireless display.
On Windows 11, use wireless display, Samsung Smart View, or Apple AirPlay.
4. Reconnect from Windows 11
Turn on the Roku and TV, then press Windows logo key + K.
Select Connect to a wireless display.
Choose the Roku and follow the TV prompt.
Use the Roku remote to pick Allow or Always allow.
For the Settings route, search for Cast in Windows Search and open Connect to a wireless display, or use Settings > System > Display > Multiple displays > Connect to a wireless display > Connect.
Open Quick Settings from Network, Sound, or Battery and turn Wi-Fi on.
If Windows says the device needs an external display cable, that PC does not support Miracast for Roku wireless display.
Remove a broken saved connection at Settings > Bluetooth & devices > Devices > Wireless displays & docks > your Roku > Remove device, then connect again with Windows logo key + K.
Install current display and Wi-Fi driver updates through Windows Update or the PC maker support app, then restart the PC and Roku.
5. Get AirPlay working from iPhone iPad or Mac
On Roku, open Settings > Apple AirPlay and HomeKit and set AirPlay to On.
Use an iPhone, iPad, or iPod touch on iOS 12.3 or later, or a Mac on macOS Mojave 10.14.5 or later, with an AirPlay-compatible Roku.
Connect the Apple device and Roku to the same Wi-Fi network and keep both devices turned on and near each other.
On iPhone X or later, or iPadOS 13 or later, swipe down from the upper-right corner to open Control Center.
On iPhone 8 or earlier, or iOS 11 or earlier, swipe up from the bottom to open Control Center.
Tap Screen Mirroring, select the Roku or AirPlay TV, and if an AirPlay passcode appears on the TV, enter it on the iPhone or iPad.
On Mac, click Control Center in the menu bar, choose Screen Mirroring, select the Roku or AirPlay TV, enter the four-digit code if asked, then choose a window, mirror the Mac screen, or extend the Mac screen.
For video that goes black during full mirroring, use the app's AirPlay button instead; in Photos, tap Share > AirPlay.
To control suggestions, open Settings > General > AirPlay & Continuity > Automatically AirPlay and choose Never, Ask, or Automatic.
Tip: on Roku TVs and Streambars, enable Home > Settings > System > Power > Fast TV start or Fast start when AirPlay discovery only works after the Roku is awake.
6. Mirror a Samsung Android phone with Smart View
Use a Samsung Android phone or tablet on Android 10.0 or later and connect it to the same Wi-Fi network as the Roku.
Pull down the Android status bar.
Tap Smart View.
Select the Roku device.
Use the Roku remote to approve the prompt with Allow or Always allow.
Use SmartThings only when the Roku appears as a compatible mirroring target on the same network.
In SmartThings, tap the TV or device in the dashboard, open Menu, and choose Mirror Screen (Smart View).
For first setup in SmartThings, use Add Now or Add Device, select the TV or device, and enter the PIN shown on screen.
7. Fix the Wi-Fi connection Roku needs to be found
On Roku, open Home > Settings > Network > About.
Compare the Roku network name and IP range with the phone or computer.
For AirPlay, casting, and the Roku mobile app, connect both devices to the same network name; when the router has separate 2.4 GHz and 5 GHz names, put both devices on the same band.
Mirroring from Windows or Android runs over Miracast, which builds a Wi-Fi Direct link between the two devices, so it needs Wi-Fi switched on at both ends rather than a matching network name or band.
Turn off the VPN on the phone, tablet, or computer, then retry mirroring on local Wi-Fi.
Restart Roku by unplugging its power cable for at least 10 seconds, or use Home > Settings > System > Power > System restart on devices that show the Power menu.
Restart the router and modem by unplugging power, waiting 20 to 30 seconds, plugging them back in, and waiting for the network to return.
Move Roku and the router closer, remove obstructions, reorient antennas, elevate the devices, then run Settings > Network > Check connection.
For a missing 5 GHz network, remember that some Roku players cannot use the 5 GHz DFS channels: change the router away from DFS channels 50-64 and 100-144, and use 36-48 or 149-165.
Tip: wired Ethernet helps a Roku stay online, but for AirPlay, casting, and the Roku mobile app the phone or computer still needs to be on the same LAN and IP range.
Miracast mirroring from Windows or Android connects peer to peer over Wi-Fi Direct, so it does not depend on that shared IP range.
8. Check work school and guest network limits
Guest Wi-Fi, hotel networks, dorm networks, and work or school networks block device-to-device traffic when client isolation, AP isolation, wireless isolation, guest isolation, or LAN-to-WLAN blocking is enabled.
Check the Roku's network at Home > Settings > Network > About, then put both devices on a network that allows local devices to communicate.
For a managed Windows laptop, iPhone, iPad, or Mac, ask the administrator to allow wireless display or AirPlay access to the Roku through device policy.
9. Finish with updates power settings and reset
Check for Roku updates at Home > Settings > System > Software update > Check Now; Roku installs OS and app updates automatically and reboots when updates are found.
For an unconnected Roku TV, use the official Roku USB update page at tvupdate.roku.com, choose the Roku TV brand, enter the Hardware ID and Serial Number from Settings > System > About, download the software, and follow the USB update process.
On Roku Express 4K 3940, Express 4K+ 3941, Streaming Stick 4K 3820, Streaming Stick 4K+ 3821, Roku 4 4400, Roku Ultra 4800, 4802, 4850, or Roku Ultra LT 4801, open Home > Settings > System > Power > Auto power savings and uncheck After 20 minutes of no interaction.
For a Roku player or Streambar connected by HDMI, turn on Home > Settings > System > Control other devices > 1-touch play, then enable HDMI-CEC in the TV's own settings so the TV wakes or switches inputs after casting or AirPlay starts.
Reset only the Roku network settings at Home > Settings > Advanced system settings > Network connection reset > Reset connection, then return to Settings > Network > Set up connection and reconnect Wi-Fi.
Factory reset only after the earlier fixes fail: go to Home > Settings > System > Advanced system settings > Factory reset; on Roku TV, choose Factory reset everything and follow the on-screen steps.
Frequently Asked Questions
Why does Roku appear for casting but not screen mirroring?
Casting and screen mirroring are different Roku paths. Casting sends supported app content to Roku, while full mirroring uses AirPlay on Apple devices or Miracast-style mirroring on supported Windows and Android devices.
Why is the video black when I mirror to Roku?
Use the app's built-in AirPlay or casting button instead of full screen mirroring. App-level streaming is the better path for protected video and supported streaming apps.
Can the Roku mobile app mirror my phone screen?
No. Roku documents the mobile app as a companion control surface for finding and controlling Roku, not as a full screen-mirroring feature.
Should I factory reset Roku right away?
No. A factory reset erases settings and requires setup and activation again. Use it only after mirroring settings, network fixes, updates, restarts, and network reset have failed.