Why your TV can't detect your phone's Wi-Fi: all the reasons and how to fix them

Are you trying to stream a movie from your phone to the big screen, but your TV stubbornly refuses to connect to the hotspot your smartphone is broadcasting? Or maybe, Smart TV Is the network simply not detecting at all, even though it works on my laptop? This problem is familiar to many, especially owners of budget models. Samsung, LG or Xiaomi, where manufacturers skimp on Wi-Fi modules. In 80% of cases, it's not breakdowns that are to blame, but incompatible settings or software limitations.

In this article we will look at all possible reasons — from a simple mismatch of Wi-Fi standards to hidden limitations in the TV firmware. You'll learn how to check each point yourself, without resorting to professional help. And if the problem lies in hardware limitations (for example, your Sony Bravia 2018 does not support 5 GHz), we'll suggest some workarounds. Let's start with the most obvious—but often overlooked—one.

1. The phone is distributing Wi-Fi in an incompatible range.

The most common reason is - mismatch of frequency rangesModern smartphones (especially flagships) iPhone 13/14 or Samsung Galaxy S22/23) by default, they distribute the Internet in the range 5 GHz, because it's faster and less cluttered. But many TVs—especially those released before 2020—support only 2.4 GHz.

How can I check this? Android go to Settings → Hotspot & Tethering → Set up hotspot and look at the parameter Network rangeOn . iPhone This parameter is hidden deeper: Settings → Personal Hotspot → Wi-Fi Password - if there is an option there Maximum compatibility, turn it on. This will force the distribution to 2.4 GHz.

• 📱 Android: Select manually 2.4 GHz in the access point settings (if the option is available). On some firmware versions (for example, MIUI on Xiaomi) this parameter can be called gang or Frequency.
• 🍎 iPhone: Activate Maximum compatibility in the modem mode menu. If there is no option, the smartphone automatically selects the range, and all that remains is bypass the restriction.
• 📺 TV: Check the manual or the manufacturer's website to see if the model supports it. 5 GHz. For example, LG UK6200 works only on 2.4 GHz, A Samsung QLED Q80T - on both.

⚠️ Attention: On some TVs (eg. Philips with Android TV 9) when connecting to 5 GHz an error may occur IP conflict — even if the network is visible. This is due to a bug in the Wi-Fi module drivers. The solution is to force the switch to 2.4 GHz.

2. Incorrect network security settings

If the TV sees the network, but it doesn't connect - or keeps asking for a password - the problem may be encryption typeModern smartphones use by default WPA3, but many TVs (especially on Tizen or webOS) support only WPA2-PSKLess common is the opposite situation: an old phone distributes the network with WPA, but the new TV doesn't accept it.

The solution is simple: change the encryption type on your phone. Android this is done in the same access point settings (Security type → select WPA2-PSK). On iPhone there is no option - the smartphone always distributes the network with WPA2, so the problem is unlikely. But if the TV still won't connect, try:

• 🔑 Set a password shorter than 8 characters (Some TVs do not support long passwords).
• 🔄 Restart the access point on your phone (turn off and then back on the tethering mode).
• 📵 Make sure that your password does not contain Cyrillic characters or special symbols (for example, #, $).

3. TV firmware limitations

Some TVs - especially budget models - Android TV or proprietary OS - have hardware limitations for connecting to mobile hotspots. For example:

• 📱 Xiaomi Mi TV 4A (2018–2019) does not connect to networks with dynamic IP (which is how most phones distribute Internet).
• 📺 Samsung Crystal UHD TU7000 Blocks connection to networks with names (SSIDs) containing spaces or Cyrillic characters.
• 🍎 Some TVs Sony Bravia refuse to work with iPhone due to a protocol conflict DHCP.

How can I check this? Try connecting the TV to a regular router (Not to the phone). If the connection works, the problem lies in firmware limitations. Solutions:

• 🔧 Update your TV software to the latest version (in 30% of cases this solves the problem). Path: Settings → Support → Software Update.
• 📲 Change the network name (SSID) on the phone in Latin without spaces (for example, MyHotspot instead of My Wi-Fi).
• 🔄 Use an alternative connection method - For example, USB-ethernet adapter or Miracast (if the TV supports it).

⚠️ Attention: On TVs Philips With Android TV 9 and older, protection against "suspicious networks" may be triggered. If you see an error "Unable to obtain IP address", try manually setting a static IP in your TV's Wi-Fi settings (for example, 192.168.43.100 with a mask 255.255.255.0).

4. IP address or DHCP conflict

If the TV sees the network, asks for a password, but after entering it, it gives an error "Connection failed" or Obtaining an IP address — the problem is IP conflictThis happens when:

• 📵 The phone and TV are trying to use the same IP address.
• 🔄 It's disabled on the phone DHCP server (rarely, but it happens on custom firmware).
• 📡 The TV is configured to a static IP that is not within the range of the distributed network.

Solutions:

1. Reboot your access point on your phone (turn the modem mode off and on).
2. On the TV, go to Settings → Network → Wi-Fi → Advanced and select Obtain an IP automatically (if the manual input box is checked).
3. If nothing helps, Set IP manually on TV:

   IP: 192.168.43.100
   Mask: 255.255.255.0
   Gateway: 192.168.43.1
   DNS: 8.8.8.8 (or 1.1.1.1)

Why do IP addresses conflict?

When a phone distributes Wi-Fi, it assigns devices addresses in the 192.168.43.x range (on Android) or 172.20.10.x (on iPhone) by default. If the TV has previously connected to a different network and "remembered" a static IP address in the same range, a conflict occurs. For example, if the IP address 192.168.43.50 was manually assigned, and the phone tries to assign it to another device.

5. Problems with power saving on the phone

Few people know, but power saving mode on the phone it can block Wi-Fi distribution - especially on Android. Manufacturers (eg Xiaomi, Huawei, Oppo) aggressively optimize background processes, and the access point may turn off after 5-10 minutes of inactivity. iPhone This problem is less common, but is also possible (for example, when the battery charge is low).

How to check:

• 🔋 On Android go to Settings → Battery → Power optimization and make sure that the modem mode is on not optimized.
• ⚡ On Xiaomi/Redmi please check further Settings → Special permissions → Autostart - it should be included there Modem mode.
• 🍏 On iPhone turn it off Low power mode (Settings → Battery).

On some phones (eg. Samsung Galaxy A-series) The access point automatically turns off if no device is connected to it for 5 minutes. To avoid this, connect a second device (e.g., a laptop) to the network or disable this option in Additional modem mode settings.

6. Hardware limitations of the TV's Wi-Fi module

If you have tried everything above and the TV still does not connect, the problem may be in hardware incompatibilityCheap TVs (especially Chinese brands like TCL or Hisense) are often equipped with weak Wi-Fi modules, which:

• 📶 Doesn't support modern standards (802.11ac, Wi-Fi 6).
• 🔌 Have a limit on the number of connected devices (for example, only 1–2 gadgets).
• 🔄 They cannot work with dynamically changing channels (like mobile access points).

How to get around this:

• 🔁 Use a router instead of a phone. Even the cheapest one. TP-Link For 1500 rubles it will be more reliable.
• 📡 Buy a USB Wi-Fi adapter (For example, TP-Link TL-WN725N) and connect it to the TV via the port USB (if the model supports it).
• 🔌 Connect via cable through USB-Ethernet adapter (if your TV has a port LAN).

⚠️ Attention: On TVs Samsung With Tizen (2016–2019) Installation of third-party Wi-Fi adapters may be blocked. Check compatibility on the manufacturer's website before purchasing.

7. Software bugs and resets

Sometimes the problem lies in firmware glitches — especially if the TV had previously connected to this network, but suddenly stopped. Typical symptoms:

• 🔄 TV keeps asking for a password, although he is faithful.
• 📵 Network disappears from the list after reboot.
• ⚠️ An error appears "Authentication failed".

Solutions (from simple to complex):

1. Restart your TV (unplug from socket for 30 seconds).
2. Reset network settings on TV: Settings → Network → Reset network settings.
3. Update the firmware (if an update is available).
4. Do a hard reset (Settings → Support → Reset), but keep in mind that this will remove all installed apps and accounts.

If the problem appeared after updating the firmware, try roll back to a previous versionOn . Android TV This can be done through ADB (instructions are available on forums like 4PDA). On Tizen or webOS Rollback is usually not possible without the service menu.

How to access the service menu on Samsung Tizen?

1. Turn off the TV.

2. On the remote control, press in sequence: Info → Menu → Mute → Power.

3. In the menu, select Option → Factory Reset (be careful - this will reset all settings!).

⚠️ Do not change other parameters if you are not sure of their meaning!

FAQ: Frequently Asked Questions

My TV connects to the router, but it can't see the network from my phone. What's wrong?

Most likely, the phone distributes Wi-Fi in the range 5 GHz, and the TV only supports 2.4 GHzCheck your phone's hotspot settings and force it to 2.4 GHz (if such an option is available). Also, make sure that the network name (SSID) contains only Latin characters without spaces.

The TV connects to the network, but the internet doesn't work. What should I do?

This is a typical problem with DHCP or DNS. Try:

1. Restart the access point on your phone.
2. Manually enter DNS on the TV (for example, 8.8.8.8 or 1.1.1.1).
3. Disable VPN on your phone (if enabled).

My iPhone connects to the TV, but it disconnects after 5 minutes. Why?

On iPhone Power saving is activated. Turn it off. Low power mode (Settings → Battery) and check if the phone is overheating (when overheating, iOS forcibly disables Wi-Fi distribution).

Is it possible to connect a TV to a phone without Wi-Fi?

Yes, there are several alternatives:

• USB cable: Some televisions (eg. Samsung With DeX) support USB connection for transferring media files.
• Miracast/Wi-Fi Direct: If the TV supports Screen Mirroring, you can duplicate your phone's screen without connecting to the network.
• Ethernet adapter: Connect your phone to the router via cable, and your TV to the same router via Wi-Fi.

After resetting, the TV stopped detecting any Wi-Fi networks. What should I do?

Your Wi-Fi settings may have reset. Try:

1. Update TV firmware.
2. Reset the settings again, but before doing this, unplug the TV from the power outlet for 1 minute.
3. If nothing helps, contact a service center (the Wi-Fi module may be damaged).