Screen Mirroring Not Working — step-by-step TV & casting fix
Joe B.
Expert ★★★★★ 27,853 satisfied customers
Specialities: Screen mirroring, smart TVs, AirPlay, Chromecast, Fire TV, Roku, iOS & Android casting, home Wi-Fi for streaming
Fix screen mirroring not working — AirPlay not working, can’t cast to TV, wireless display won’t connect
Technician
Are you trying to mirror from an iPhone / iPad (AirPlay), Android phone (Smart View / Cast), or a Windows laptop (wireless display / Miracast)? What brand and model is the TV or streaming device (Samsung, LG, Sony, Roku, Fire TV, Chromecast, Apple TV, etc.)?
Also, when you try to start screen mirroring / AirPlay, what exactly happens — does the TV not show up in the list at all, does it say “Unable to connect”, or does it connect and then immediately disconnect or show a black screen? And finally, are the phone and TV on the same Wi-Fi network (same network name/SSID) and not on a separate guest network?
Sometimes the TV shows up in the list, I tap it, and it says “Connecting…” forever. It’s definitely on the same Wi-Fi network name. I’ve tried restarting the TV, iPhone, and router, but AirPlay still not working. My partner’s iPhone has the same problem, so it’s not just my phone.
Technician
Common causes of AirPlay not working or TV not showing up in Screen Mirroring include:
• Phone and TV are on different Wi-Fi bands (one on 2.4 GHz, the other on 5 GHz) or on a guest network with client isolation.
• AirPlay is turned off or restricted in the TV’s AirPlay / Apple AirPlay settings.
• The router blocks the multicast / broadcast discovery traffic that AirPlay and other wireless display protocols use.
• A VPN, security app, or “Private Wi-Fi address” setting on the phone interfering with casting.
We’ll start by confirming both devices are truly on the same local network and that the TV is ready to accept AirPlay connections, then we’ll adjust the Wi-Fi and iPhone settings so screen mirroring to TV works reliably again.
On the TV, AirPlay is enabled in Settings and it used to work with my old router, so I’m guessing something changed when we got this new Wi-Fi. Other than screen mirroring, everything (streaming, browsing, email) works fine on all devices.
Technician
Step A — Make sure phone and TV can “see” each other on the network
1) On the TV, go to Settings → General → Apple AirPlay Settings (or similar) and confirm:
• AirPlay is On.
• Require Code is set to First Time Only or On (not “Password only”).
2) On the TV’s Network settings, check if it’s connected via Wi-Fi or Ethernet. If it’s wired, some mesh routers isolate wired vs. wireless devices. If possible, temporarily switch the TV to Wi-Fi using the same SSID the iPhone is on.
3) In the router app/web interface, temporarily disable guest network and client isolation features like “AP isolation”, “Block LAN access”, or “Wi-Fi isolation”. Those options are great for guests but will break screen mirroring and casting.
4) Do a clean restart in this order:
• Power off TV and iPhones.
• Reboot the Wi-Fi router / mesh nodes.
• When Wi-Fi is back, turn on the TV, then the iPhone and reconnect to the main network.
After that, open Control Center → Screen Mirroring. Tell me if the Samsung TV appears consistently and whether it still says “Unable to connect”.
I also disabled “Client isolation” in the router’s advanced wireless settings and rebooted everything in the order you mentioned. Now the TV shows up faster in the iPhone’s Screen Mirroring list, but I still sometimes get “AirPlay connection failed” on the phone. It works maybe 1 out of 4 tries.
Technician
Step B — Fix “AirPlay not working” on iPhone
On the iPhone:
1) Go to Settings → Wi-Fi, tap the “i” next to your network:
• Turn Private Wi-Fi Address off (temporarily).
• Turn Limit IP Address Tracking off.
• Make sure no VPN is active; if you use a VPN app, disconnect it completely.
2) Go to Settings → General → AirPlay & Handoff and set:
• “Automatically AirPlay to TVs” to Ask or Automatic (not Never).
• Make sure Handoff is enabled.
3) Check for updates:
• Settings → General → Software Update on the iPhone.
• On the Samsung TV, use Support → Software Update and install any pending updates.
4) Force-restart both the iPhone and the TV after updates. Then test again: open a video or photo, swipe down, tap Screen Mirroring, choose the TV, and wait for the code prompt.
If AirPlay still only works sometimes, we’ll do a quick network settings reset on the iPhone which often fixes stubborn screen mirroring issues.
After restarting, screen mirroring now works more often, but I still get an occasional “AirPlay connection failed” message, especially right after I switch Wi-Fi networks or wake the TV from sleep. Do you still recommend resetting network settings on the phone?
Technician
Step C — Reset iPhone network settings (fixes many “Screen Mirroring not working” cases)
1) On the iPhone, go to Settings → General → Transfer or Reset iPhone → Reset → Reset Network Settings.
2) Enter your passcode and confirm. The iPhone will reboot and forget Wi-Fi networks, VPNs, and Bluetooth pairings (so have your Wi-Fi password handy).
3) After reboot, reconnect to your main home Wi-Fi (not the guest network) and open a couple of apps to confirm internet access.
4) Now wake the TV, make sure it’s on the same Wi-Fi, and try Screen Mirroring again.
This same approach (clear network, update firmware, and keep devices on the same network) is also what we use when Android screen mirroring not working with Smart View or when a Windows 11 wireless display can’t connect to a smart TV or Chromecast.
However, my Windows laptop still can’t connect to the TV as a wireless display. It sees the TV name, but when I click Connect, it fails after a few seconds. Is that related, or a different issue?
Technician
Step D — Fix “Can’t connect to wireless display” on Windows
1) On the laptop, press Windows key + K or Windows key + P and choose Connect to a wireless display. If you don’t see that option, the laptop may not support Miracast.
2) Make sure the laptop is on the same Wi-Fi band as the TV (ideally 5 GHz on the same SSID) and that no corporate VPN is running.
3) Update the laptop’s Wi-Fi and display drivers from the manufacturer’s site and install any pending Windows Updates.
4) On the TV, ensure Screen Mirroring / Miracast is enabled (sometimes called “Screen Sharing” or “Project to TV”) and that no “Allow only phones” option is checked.
5) Reboot both devices and try connecting again.
If the laptop still won’t connect but your phone now mirrors fine, we know the TV and Wi-Fi are set correctly, and we’d focus on that laptop’s Miracast support or use a Chromecast / HDMI cable as a workaround.
Is there anything I should change on the router or TV settings so I don’t have to troubleshoot screen mirroring not working every couple of weeks?
Technician
Step E — Make the screen mirroring fix stick
• Leave client isolation / AP isolation disabled on your main Wi-Fi network so phones, laptops, and TVs can talk locally.
• Use one clear main SSID (for example, “Home Wi-Fi”) for all your casting devices instead of splitting into lots of separate networks.
• Keep TV firmware, router firmware, and phone OS reasonably up to date so you get fixes for AirPlay / Cast bugs.
• Avoid using a VPN on devices while screen mirroring — or at least disconnect it when casting.
• On iPhones and Android devices, periodically restart them if screen mirroring starts to feel laggy or unreliable.
With those in place, your screen mirroring to Samsung TV, AirPlay from iPhone, and wireless display from Windows should remain stable — and if something breaks again, you’ll know exactly which steps worked.
Thanks for walking me through all the different parts — Wi-Fi, TV settings, and the devices themselves.
Technician
Summary: To fix screen mirroring not working, put the phone and TV on the same non-guest Wi-Fi, disable client isolation, ensure AirPlay / Smart View / wireless display is enabled on the TV, update firmware on both ends, and reset network settings on the phone or laptop if needed. That combination solves most cases of AirPlay not working, TV not showing up in Screen Mirroring, and can’t connect to wireless display errors.
If you ever run into a new issue — black screen, no sound, lag, or a stubborn device that won’t cast — you can open a chat with an expert and we’ll trace it live with you.
Quick answer: the accepted fix
Accepted fix when screen mirroring is not working: confirm your phone, laptop, and TV are on the same non-guest Wi-Fi, disable AP/client isolation in the router, turn on AirPlay / screen mirroring in TV settings, restart router, TV, and device, update firmware, then reset network settings on the phone or PC if AirPlay, Cast, or wireless display still fails.
Why screen mirroring stops working (Wi-Fi, AirPlay, Chromecast, Miracast)
Most screen mirroring not working problems aren’t caused by your internet speed but by how your local network is configured. If the TV and phone are on different Wi-Fi bands or networks, if the router has guest Wi-Fi isolation enabled, or if AirPlay / Cast is disabled on the TV, you’ll see symptoms like “Unable to connect”, “No devices found”, or a black screen when starting mirroring.
Screen mirroring relies on discovery protocols (like the ones used by AirPlay, Chromecast, and Miracast wireless display) that can be blocked by router firewalls, VPN apps, or privacy features. Firmware bugs and outdated apps can also break casting from iPhone or Android to smart TV even when the devices are technically online. Fixing the path — phone → Wi-Fi → TV / streaming device — usually restores mirroring without changing your ISP or router hardware.
How to check whether the problem is phone, TV, or Wi-Fi network
To quickly narrow down a screen mirroring not working issue, isolate each part:
First, test whether the TV can receive casts from any device: if an Android phone can cast YouTube to Chromecast but an iPhone cannot AirPlay to the same TV, the problem is likely on the iPhone. If no phone, tablet, or laptop can mirror to the TV, check the TV’s screen mirroring / AirPlay / casting settings and update its firmware. If some devices only fail on your home network but work on a mobile hotspot, your router’s Wi-Fi isolation, VLAN, or firewall rules are probably blocking casting.
Screen mirroring not working — quick troubleshooting tips
Confirm the TV and device are on the same Wi-Fi, then fix AirPlay / cast settings and network isolation.
Fast path: connect your phone and TV to the same main Wi-Fi network (no guest network) → turn on AirPlay / Smart View / screen mirroring in TV settings → disable router options like AP isolation that block devices from seeing each other → restart router, TV, and device → update TV firmware and phone OS → if AirPlay or cast still not working, reset network settings on the phone or laptop and test again. This simple checklist solves most cases of screen mirroring not working on Samsung, LG, Sony, Roku, or Fire TV.
Disclaimer: This information is AI-generated and intended for general guidance only. For advice specific to your TV model, streaming device, and Wi-Fi setup, please consult a verified expert on Whizz-Tech before making decisions.
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FAQ
Why is my screen mirroring not working to my TV?
Most of the time screen mirroring not working is caused by the phone, laptop, or tablet not truly being on the same local network as the TV. Guest networks, AP/client isolation, disabled AirPlay / screen mirroring on the TV, VPN apps, or outdated firmware can all prevent devices from seeing each other even when the internet seems fine.
How do I fix AirPlay not working on my Samsung, LG, or Sony TV?
Make sure AirPlay is turned on in the TV settings, connect the iPhone/iPad and TV to the same non-guest Wi-Fi, disable any Wi-Fi isolation features in your router, and update both the TV firmware and iOS. If AirPlay still fails, reset network settings on the iPhone and test again.
Why doesn’t my TV show up in the screen mirroring or casting list?
If the TV, Chromecast, Roku, or Fire TV stick doesn’t appear in the list of devices to cast to, it’s usually on a different network, turned off, or blocked by router settings. Confirm it’s powered on, connected to the same Wi-Fi name as your phone or laptop, and that guest Wi-Fi or AP isolation is disabled. Then restart the TV and casting device.
When should I reset my phone’s network settings to fix screen mirroring?
If you’ve checked Wi-Fi, disabled VPNs, updated software, and verified that screen mirroring is enabled on the TV but casting still randomly fails, a network settings reset on the phone is a good next step. It clears old Wi-Fi profiles and DNS settings that often cause stubborn AirPlay / cast connection failed errors.
Sources
- Apple — If AirPlay or screen mirroring isn’t working
- Google — Troubleshoot issues with casting to your TV
- Samsung — Screen mirroring to your Samsung TV
Filed under: Internet & Wi-Fi Troubleshooting
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