Owners of modern Smart TVs often encounter a situation where the wireless connection is unstable, and the first question becomes determining the module's operating frequency. Many users don't even realize that their LG TV It can support two bandwidths at once, but use the slower one by default. Understanding the difference between these standards is critical for comfortable viewing of high-definition content.
Depending on the year of manufacture and price segment, Smart TV TVs may have various technical limitations. Older models are often limited to a narrow range, while flagship devices utilize advanced data transfer technologies. Let's explore how your TV interacts with your router and why this impacts speed.
Two Worlds of Wireless: 2.4 GHz vs. 5 GHz
Modern wireless networks operate primarily in two main ranges, each of which has its own unique physical properties and areas of application. Range 2.4 GHz is an older and more widespread standard that provides wide signal coverage but suffers from low speed and noise. In contrast, the frequency 5 GHz offers significantly higher bandwidth, making it ideal for 4K video streaming, but has a shorter range.
It's important to understand that an LG TV doesn't choose a frequency arbitrarily, but relies on the supported standards of its internal Wi-Fi module. If the device is single-band, it physically won't be able to detect a 5 GHz network, even if the router is broadcasting it. Dual-band models, on the other hand, can automatically switch between frequencies or combine them into a single network with the same name (SSID).
The differences in data transfer speeds between these standards are colossal. 2.4 GHz is sufficient for casual web surfing, but demanding content like HDR or 3D video requires a wider channel. That's why it's important to consider the compatibility of these technologies when purchasing a new router or TV.
How to determine band support in LG models
You can determine the frequency your specific TV operates on based on its year of manufacture and series. Manufacturers typically introduce 5 GHz support in more expensive series starting with certain years of manufacture. For example, entry-level budget series until 2016-2017 were typically equipped only with modules. 802.11n, operating exclusively at 2.4 GHz.
More modern models, especially those that support 4K Ultra HD resolution and have designations like UHD, OLED or NanoCell, are almost guaranteed to have a dual-band module. However, having a Smart TV doesn't always mean fast Wi-Fi. In some cases, even mid-range 4K TVs may have a reduced module to save money.
To accurately determine your device's capabilities, you can consult the technical documentation or search for the model on the official website. There are also software-based testing methods, which we'll discuss below. Knowing the exact specifications will help you avoid purchasing unnecessary routers that your TV simply won't recognize.
Hidden designations in specifications
In the technical specifications, look for the phrase "Wi-Fi 802.11ac" or "Wi-Fi 5"—this is a sure sign of 5 GHz support. If only "802.11n" is listed, then it most likely only supports the 2.4 GHz band.
Checking the current connection frequency through settings
The most reliable way to find out what frequency your TV is currently operating on is to look at its system menu. Interface webOS or Android TV (Depending on the year) allows you to view detailed information about your network connection. To do this, you'll need a control panel and access to the main system settings.
You need to go to the network settings menu, where the connection status is displayed. Advanced settings often display not only the IP address, but also the connection standard. If you see the symbol 802.11ac or frequency 5000+ MHz, then you're using the fast band. Otherwise, the standard band is most likely active. 802.11n at a frequency of 2.4 GHz.
In some firmware versions, information may be hidden in the "About TV" or "Network Connection" section. If it simply says "Connected," try pressing the information button on the remote (often marked with an "i" or "Info" icon) while watching content or in the network menu—this may display a technical window with the Wi-Fi status.
☑️ Check network status
⚠️ Attention: The menu interface may vary depending on the webOS version (3.0, 4.0, 5.0, 6.0, and higher). If you don't see the "Frequency" or "Standard" option, try updating your TV software to the latest version available for your model.
Compatibility table of series and years of production
To quickly navigate the specifications of the various LG TV lines, we've compiled a summary table. It will help you understand what to expect from your device without delving into the complex technical specifications of each model.
| Year of release / Series | 2.4 GHz support | 5 GHz support | Wi-Fi standard |
|---|---|---|---|
| Budget models (before 2016) | Yes | No | 802.11n |
| Middle segment (2017-2019) | Yes | Yes (often) | 802.11ac |
| Flagship OLED/NanoCell | Yes | Yes | 802.11ac / ax |
| Modern 4K UHD (2020+) | Yes | Yes | 802.11ac |
The table shows that the probability of 5 GHz support approaches 100% as the year of manufacture increases. However, in the budget segment, even in newer models, manufacturers sometimes retain the older module. Therefore, the year of manufacture is a guideline, but not an absolute guarantee.
If your model falls into a "gray zone" (e.g., 2017-2018, mid-range), it's best to double-check the information for the specific part number on the manufacturer's website. Specifications can vary even within the same model range depending on the region of delivery.
Connection issues and interference in the 2.4 GHz band
Range 2.4 GHz The internet connection is extremely congested in apartment buildings. Not only are neighbors' Wi-Fi routers active, but also Bluetooth headsets, wireless mice, microwave ovens, and baby monitors. This creates a "muddy" effect of radio waves, leading to slow speeds and constant buffering of video on the TV.
If your LG TV only operates on this frequency, you may experience intermittent connection drops or reduced picture quality. The TV may automatically reduce the stream's bitrate to compensate for packet loss. In such cases, even a powerful internet connection from your provider won't save the situation if the airwaves are clogged.
To improve the situation, you can try manually changing the router's broadcast channel to a less congested one (for example, 1, 6, or 11), but this is a temporary solution. The only permanent solution is switching to the free 5 GHz band, where the number of interfering signals is minimal.
Setting up a dual-band router for LG TV
If your TV supports 5 GHz but connects to 2.4 GHz, it's possible that Smart Connect is enabled in your router settings. In this case, the router itself decides which frequency to assign to the client and often chooses the longer-range but slower 2.4 GHz.
To force a high-speed connection, it is recommended to separate networks in the router settings by giving them different names (SSIDs). For example, HomeWiFi_2.4 And HomeWiFi_5GAfter this, you need to scan for networks again on your LG TV and select the network with the 5G set-top box.
Entering the password and connecting will take a couple of minutes. After successful authorization, the TV will utilize the full potential of your home network. This is especially important for those with plans with speeds above 100 Mbps.
⚠️ Attention: When separating networks, make sure you remember the passwords for both bands. If you lose access to your router settings, the only way to restore them is by resetting the device to factory settings using the Reset button.
What to do if your TV can't see the 5 GHz network
It's not uncommon for a router to broadcast a 5 GHz network, but an LG TV can't detect it. The first reason is the lack of support for this standard in the TV's hardware, as discussed above. The second, more complex, reason is incompatibility of the channel's regional settings.
The 5 GHz standard has many channels, and different sets are permitted in different countries. If the router is set to a channel that is not permitted in the region set on the TV (or vice versa), the network simply won't appear in the list of available channels. For example, some channels in the 5 GHz band may be prohibited for use in certain countries.
A solution may be to change your router's regional settings or lock the channel to one of the default channels (36, 40, 44, 48), which are supported everywhere. It's also worth checking whether your router has the SSID hiding feature enabled for guest networks or specific security protocols.
Alternative ways to improve the connection
When your wireless connection is poor and replacing your router isn't an option, consider wired options. LAN cable (Ethernet) provides stable speed and minimal latency, which is critical for online gaming and viewing heavy 4K content without compression artifacts.
If running a cable throughout your entire apartment isn't feasible, you can use PowerLine technology. It transmits the internet signal through the house's regular electrical wiring. You'll need a pair of adapters: one plugs into an outlet near the router, and the other near the TV.
Another option is to use a Wi-Fi repeater (amplifier) with a LAN port. The repeater picks up the router's signal and transmits it to the TV via cable, acting as a bridge. This may be a compromise solution for older LG models.
Why does my LG TV only connect to 2.4GHz even though my router is dual-band?
Most likely, your TV has a single-stream Wi-Fi module, which is physically unable to operate at 5 GHz. This situation applies to mid-range and budget models released before 2018-2019. Check your model's specifications on the official LG website, looking for the "Network" or "Wireless" section.
Is it possible to add 5GHz support to an old TV via USB?
In most cases, no. The webOS or Android TV operating system must have drivers for a specific USB adapter. LG does not provide universal support for third-party Wi-Fi dongles. Only genuine LG adapters (such as the AN-WF500) may work, but these are often also limited to the 802.11n (2.4 GHz) standard.
Does Wi-Fi frequency affect image quality in online cinemas?
Yes, directly. If the connection speed is unstable (which is typical on the noisy 2.4 GHz band), the service automatically reduces video quality to avoid buffering. On the 5 GHz band, you're more likely to get a native 4K HDR image without artifacts.
How to find out the exact Wi-Fi speed on an LG TV?
Open your TV's browser (if available) and run a speed test, or use built-in network diagnostic apps. However, the most accurate link speed data (connection speed to the router) can be found in the engineering menu or through dedicated network analysis apps installed on your TV.