A Xiaomi smartphone refusing to detect a TV on a shared Wi-Fi network is one of the most common problems when organizing a multimedia space. Users often encounter the following: broadcast function suddenly stops working for no apparent reason, interrupting movies or presentations. This could be caused by a software glitch in the operating system. MIUI, as well as the operating features of the router, which isolates devices from each other.
Modern televisions, whether Android TV, WebOS TVs, TVs, and proprietary systems require a stable connection and the correct network permissions to properly exchange data. If your Xiaomi phone can't see your TV, even when on the same network, the problem most often lies in security settings or outdated data transfer protocols. It is critical to check that both devices are connected to the same router frequency (2.4 GHz or 5 GHz), as some routers do not allow devices on different bands to see each other.
In this article, we'll take a detailed look at all possible causes of the failure and offer step-by-step troubleshooting instructions. You don't need to be a networking expert to get your system back up and running. Mi Cast or the standard DLNA protocol. We'll look at router settings, smartphone parameters, and specific TV features that may be blocking the connection.
Basic diagnostics and testing of the network environment
First, you need to make sure both devices are truly connected to the same digital network. Users often inadvertently connect their phones to a guest Wi-Fi network or the 5 GHz band while the TV remains on the 2.4 GHz network. Check the network names in your smartphone's settings by going to Settings → Wi-Fi, and compare them with those displayed on the TV screen.
Modern ISP routers often have a "guest mode" feature that isolates connected devices by default. This means your Xiaomi phone can technically access the internet, but it can't access local devices like printers or Smart TVs. Make sure data-saving features or airplane modes, which can temporarily block network modules, are disabled on both devices.
If you're using complex network configurations, such as mesh systems or multiple access points with the same name (SSID), this can also cause confusion. In this case, the phone and TV may be physically close but communicating through different network nodes, blocking detection. To troubleshoot, temporarily disable mobile data on your smartphone to eliminate the impact of geolocation and cellular data on the search process.
Router settings and client isolation
The most common technical reason why a Xiaomi phone does not see a TV is the enabled function AP Isolation (access point isolation) or Client Isolation in the router settings. This feature is designed for public networks (cafes, hotels) and prevents devices within the same Wi-Fi network from exchanging data packets. To check and disable this, log in to the router control panel.
Typically the login address is 192.168.0.1 or 192.168.1.1After entering your administrator login and password, find the Wireless section. Look for options named "AP Isolation," "Client Isolation," or "Network Isolation." If the switch is active, you need to disable it, and then reboot the router.
How to log into a router if you forgot your password?
If you haven't changed the default password, try the admin/admin combination or check the sticker on the bottom of the router. If the password has been changed and lost, you'll need to reset the router to factory settings using the Reset button.
It's also worth paying attention to encryption protocols. Older TVs may not work properly with modern security standards. WPA3If you have new hardware, try temporarily switching the Wi-Fi security mode to WPA2/WPA MixedThis will improve compatibility between different devices on your home network.
⚠️ Please note: Router interfaces from different manufacturers (Keenetic, TP-Link, Asus) can vary significantly. If you're unsure, it's best to consult the specific model's manual or your provider to avoid disrupting your internet access settings.
Casting protocols: DLNA, Miracast, and Chromecast
Understanding the differences between data transfer technologies will help you find a solution faster. When a Xiaomi phone doesn't detect the TV, the connection methods are often confused. DLNA used to transfer media files (photos, videos) from the phone's memory to the TV screen. Miracast (or Mi Cast) duplicates the entire smartphone screen. Chromecast built-in Allows you to stream content from applications (YouTube, Netflix) on command.
For DLNA to work, the corresponding receiver app must be running on your TV. On Android TV, this may be a built-in module, while on other systems, it may be a separate app like "Media Player" or "AllShare." Make sure the app waiting for the connection is open on your TV; otherwise, the TV may not respond to search requests from your phone.
In Xiaomi smartphones, a system function is responsible for image transmission. Broadcast (Cast). It's based on the Miracast protocol. If the TV doesn't natively support Miracast, the phone won't see it. In such cases, external set-top boxes (TV Boxes) or built-in Smart View features in Samsung and LG TVs, which must be activated separately, become the solution.
☑️ Protocol verification
Specifics of Android TV and Google Home
If your TV is running an operating system Android TV or Google TVThe device detection process is closely tied to Google services. Often, a Xiaomi phone doesn't detect a TV because Google accounts are out of sync or Google Play Services are outdated on the TV. Make sure both devices are signed in to the same Google account.
An app is often required for control and configuration. Google HomeIt acts as an intermediary, helping the phone "get to know" the TV. If the app is installed but the device isn't found, try removing the TV from the device list in the Google Home app and adding it again, following the on-screen instructions.
An important nuance is the operating system version. Older Android TV models (version 7 and below) may conflict with newer versions of MIUI. In this case, standard casting may not work, and you will need to use third-party receiver apps, such as AirScreen or TV Cast, which can be found in the Google Play Store on the TV itself.
Xiaomi smartphone system settings (MIUI)
MIUI is known for its aggressive power optimization, which can kill background processes needed for device detection. If your Xiaomi phone can't detect your TV, check your system app permissions. Go to Settings → Apps → All apps and find system services related to Wi-Fi or Broadcasting.
Make sure they have permission to run in the background and access the local network. In new versions of Android and MIUI, when you first connect to a new Wi-Fi network, a prompt appears asking: "Allow devices to scan for devices on this network?" If you accidentally select "No," the phone will treat the network as public and hide all local devices.
It's also worth checking the date and time. A mismatch between the system time on your phone and TV (or router) can lead to security certificate errors, preventing the handshake between the devices. Set up automatic time synchronization via the network.
Third-party applications and alternative methods
When built-in tools fail, third-party solutions come to the rescue. If your Xiaomi phone can't detect your TV through the standard menu, try installing a third-party app. [This app is great for streaming video files.] VLC for Android or BubbleUPnPThey use their own search algorithms and often ignore MIUI system limitations.
For screen mirroring (Miracast) you can use the app Web Video Caster or LocalCastThey install a special receiver app on their TV, after which the connection is almost always established, even if standard search fails. This is especially true for older Smart TVs that no longer receive updates.
The table below lists popular applications and their purpose for solving connection problems:
| Application | Connection type | Peculiarities |
|---|---|---|
| Google Home | Chromecast built-in | Official solution for Android TV |
| VLC Player | DLNA / SMB | Best for playing subtitle files |
| AirScreen | AirPlay / Miracast | Turns your TV into a receiver for iPhone and Android |
| Xiaomi Mi Remote | Infrared / Wi-Fi | Controlling the TV like a remote control requires configuration |
Hardware limitations and frequency ranges
Don't forget about the hardware. Dual-band routers broadcast two networks: 2.4 GHz and 5 GHz. They often have the same name, but technically they are different channels. Some older Xiaomi Mi TVs only operate in the 2.4 GHz band, while modern smartphones default to the faster 5 GHz band. In this situation, they are on the same logical network but on different physical frequencies, which can block discovery protocols.
Try forcing your phone to switch to the 2.4 GHz network (if your router separates them by name, such as MyWiFi and MyWiFi_5G) and see if the TV appears. Distance is also important: the 5 GHz signal penetrates walls less effectively. If the router is far away, the phone may see the network, but packet loss will be too high for stable video transmission.
In rare cases, the problem stems from overheating of the TV's Wi-Fi module. If the TV has been running for a long time, the module may have entered error mode. Completely powering down the TV (unplugging the power cord for 1-2 minutes) helps reset the network adapter and often restores visibility of the device.
⚠️ Important: If you experience frequent connection failures, check if your router has a firmware update. Manufacturers regularly release patches to improve compatibility with new smartphones and security protocols.
Why does rebooting the router help?
A reboot clears the router's RAM and resets the ARP table, which is responsible for mapping IP addresses to device MAC addresses. This eliminates addressing conflicts, which occur when the router "forgets" to whom to send data packets.
Frequently Asked Questions (FAQ)
Why does the phone see the router, but not other devices on the network?
Most likely, the client isolation function (AP Isolation) is enabled in the router settings, or the antivirus on the computer/phone is blocking incoming connections, considering the network to be public.
Is it possible to connect a phone to a TV without Wi-Fi?
Yes, you can use a USB-C to HDMI cable (if your phone supports video output) or an infrared port (for control, but not for screen sharing). A Chromecast dongle, which creates its own access point, is also an option.
My Xiaomi TV doesn't recognize my iPhone. What should I do?
Make sure AirPlay support is enabled on your TV (in the Mi TV settings). iPhone and Android use different protocols by default. For Android TVs, you'll need to install AirPlay emulator apps or use proxy apps.
How do I find out my TV's IP address for manual connection?
Go to the network settings on the TV itself and select "About Network" or "Status." The IP address will be listed there (e.g., 192.168.1.55). Enter it in the "Add Device" field in the app on your phone.