The situation when the beloved Smart TV Suddenly losing internet connection can catch you off guard in the middle of watching a movie or streaming a video. Users often encounter situations where the router is working properly, smartphones and laptops load content without delay, but the TV LG The device persistently displays "no connection" or endlessly tries to connect. This is a common problem that rarely indicates a serious hardware failure, but requires a competent approach to diagnosis.
Most often, the root cause lies in a software glitch, outdated firmware, or a simple conflict with the router's security settings. Before taking your device to a service center, it's worth performing a few DIY troubleshooting steps. In 90% of cases, the problem is solved by changing the DNS server to 8.8.8.8 or by completely resetting the network settings on the TV itself. Let's take a step-by-step look at the steps you need to take to restore your device's access to the global network.
It is important to understand that modern televisions are complex computers running an operating system. webOSLike any computer, they can accumulate cache errors, conflict with new encryption protocols, or simply "forget" old passwords. Therefore, the first rule is not to panic and to rule out possible causes one by one, from the most basic to complex settings.
Primary diagnostics and equipment testing
Before delving into the intricacies of settings, it's important to ensure that all network components are working properly. It's common for a router to freeze and stop assigning IP addresses to new devices, even though old ones continue to work. Rebooting the router is the first step. Simply unplug the router for 10-15 seconds, then plug it back in again after it has fully booted up.
It's also worth checking whether the TV can see other wireless networks. If the list of networks is empty, the TV's Wi-Fi module may be faulty or the internal antenna cable may be loose. Try connecting your smartphone to the same access point to ensure the internet connection is working properly. If the router broadcasts a 5 GHz signal and the TV only supports 2.4 GHz, it simply won't see your network.
- 📶 Check if the Wi-Fi indicators on your router are lit and blinking when you try to connect.
- 🔌 Make sure the TV's power cable is firmly plugged into the wall outlet, as power surges may cause a malfunction.
- 📱 Check the internet connection on other devices in the same room where the TV is located.
If the problem persists after rebooting the router and checking other devices, we move on to the software. In some cases, simply changing the broadcast channel in the router settings helps. Automatic channel selection isn't always accurate, and neighboring networks may be jamming your TV's signal.
Setting up date, time, and DNS servers
One of the most common and non-obvious reasons why LG Smart TV The TV won't connect to Wi-Fi, and the date and time are incorrect. Security protocols require time synchronization for a proper handshake with the server. If the TV's date is set to, say, 2010, the security certificates will be invalid, and the connection will fail.
To fix this, go to the menu Settings → General → Time and DateMake sure automatic network sync is enabled, or manually set the current values. Then try connecting to Wi-Fi again. If that doesn't help, the next step is to manually configure DNS.
ISPs often provide their own DNS servers, which can be slow or block access to some Smart TV resources. Replacing them with public servers from Google or Cloudflare often works wonders. You need to access the advanced Wi-Fi connection settings on your TV.
In the network settings menu, find "Edit" or "Advanced Settings." Find the DNS server field and uncheck "Automatic." Enter the address there. 8.8.8.8 (main) and 8.8.4.4 (alternative). These are stable Google addresses that work worldwide.
| Parameter | Default value | Recommended value | Status |
|---|---|---|---|
| DNS 1 | Auto / Provider | 8.8.8.8 | Actively |
| DNS 2 | Auto / Provider | 8.8.4.4 | Actively |
| IP address | Auto (DHCP) | Auto (DHCP) | Do not change |
| Mask | Auto | Auto | Do not change |
Resetting network settings on an LG TV
Sometimes configuration errors accumulate in your TV's memory, preventing new connections. The "Reset Wi-Fi settings" or "Delete saved networks" feature helps clear this cache. This won't delete your apps or accounts, but it will force the TV to forget all previously entered Wi-Fi passwords.
To perform this operation, go to Settings → Network → Wi-Fi connectionFind your network in the list of available networks, select it, and click "Delete" or "Forget." If you don't see this option, look for the "Reset network settings" button in the "Advanced settings" menu.
☑️ Network reset algorithm
After deleting the network, be sure to reboot the TV. Don't just turn it off with the remote, but use the menu or unplug it. After turning it on, try searching for your network and re-entering the password, paying close attention to the case.
⚠️ Attention: If after a reset the TV can no longer see even neighboring networks, the problem may be with the Wi-Fi hardware module, which may have come loose from the board or burned out.
Software (Firmware) update
Outdated version of the operating system webOS — is a common culprit behind connection issues. Router manufacturers are implementing new encryption standards (WPA3), but older TV firmware simply doesn't support them. Therefore, updating the software is critical.
If your TV is connected to the internet via a cable (LAN) or via a mobile phone (Wi-Fi hotspot), the update can be performed automatically. Go to Settings → Support → Software Update → Update NowThe system will automatically check for a new version and install it.
If Wi-Fi isn't working at all and a cable connection isn't available, you'll have to update via USB. You'll need a computer, a flash drive (formatted in FAT32), and access to the LG support website. Find your TV model, download the latest firmware version, and unzip it to the root directory of the flash drive.
LG_DVB.HEX (example firmware file name)Insert the USB flash drive into the TV while it's turned off, then turn it on. The system should automatically prompt you to update the software. If you don't see the prompt, go to the update menu and select "Update from USB." The process may take 10-15 minutes, and the TV may reboot several times.
What should I do if the update is interrupted?
If the update is interrupted (power outage or USB flash drive removal), the TV may not turn on. In this case, you'll need to reflash the firmware via the service menu or contact a service center. Do not forcefully interrupt the process!
⚠️ Attention: During a firmware update, do not unplug the TV. This may cause irreversible damage to the software.
2.4 GHz and 5 GHz frequency conflicts
Modern routers often operate in two bands: 2.4 GHz and 5 GHz. Older TV models LG TVs may not support the 5 GHz (802.11ac) standard, operating only on 2.4 GHz (802.11n). If your router combines both networks under a single name (Band Steering technology), the TV may attempt to connect to an unsupported frequency and lose connection.
The solution is to separate the networks in your router settings. Give them different names, for example, Home_WiFi_24 And Home_WiFi_5GTry connecting your TV to a network with a 24-bit network extension. This will ensure better compatibility and signal range, although the speed may be lower, but it's still sufficient for streaming 4K video.
It's also worth paying attention to the broadcast channel. There are only 13 channels in the 2.4 GHz band, and they are often clogged with signals from neighboring networks. Channels 1, 6, or 11 are considered the most stable. Try locking one of these channels in your router settings.
- 📡 The 802.11n (2.4 GHz) standard provides coverage up to 70 meters indoors.
- 🚀 The 802.11ac standard (5 GHz) is faster, but penetrates walls worse.
- 📺 Older LG TVs (before 2015) often do not see 5 GHz networks at all.
If your router is too new, it may only use modern security protocols, which your older TV won't understand. Try temporarily changing the router's encryption type from WPA3 to WPA2-PSK (AES). This will reduce overall network security but allow your older device to connect.
Using alternative connection methods
If your TV's built-in Wi-Fi module has completely failed or is unstable, don't give up on its Smart features. There are several reliable ways to get around this problem without buying a new TV. The simplest and cheapest is to use a Wi-Fi repeater (signal booster) with a client-bridge function.
The repeater plugs into an outlet near the TV, receives Wi-Fi from the router, and distributes internet to the TV via a LAN cable. This solves the problem of weak signal strength and often bypasses software glitches in the TV module. The device acts as an external network card.
Another popular option is to purchase an external TV set-top box (Android Box, Apple TV, Yandex.Module). It connects via HDMI and has its own, more powerful Wi-Fi module. The Smart TV interface on set-top boxes is often faster and more convenient than the TV's native system.
You can also use your smartphone as a hotspot, but this isn't always convenient due to the data usage. However, as a temporary solution for testing the functionality of Smart services, this method is excellent. Share the internet from your phone and see if YouTube or Kinopoisk works.
Why does the TV see the network, but says “Failed to connect”?
Most often, this indicates an incorrect password or incompatible encryption type. Check if MAC address filtering is enabled on the router. The problem may also be that the router has run out of available IP addresses in the DHCP pool.
Is it possible to connect an LG TV to Wi-Fi without a remote?
Yes, if you have a smartphone with an IR port or the LG ThinQ app installed previously when the remote still worked. You can also try a universal remote or a USB keyboard/mouse if your TV supports HID devices.
Does antivirus software on a router affect TV connection?
Yes, some parental control features or built-in antivirus software in routers (such as Keenetic or Asus) can block unknown devices. Check the list of blocked clients in your router settings.
Do I need to change my router if my TV doesn't have Wi-Fi?
Not necessarily. First, try updating your router's firmware and changing the channel. If your router is more than 7-10 years old, replacing it with a modern model that supports AC may resolve the connection issue.
Will resetting my network reset my channel and app settings?
No, reset network settings (Network Reset) only affects internet connection settings (Wi-Fi passwords, IP, DNS). The channel list, installed apps, and accounts will remain the same.