Connecting an LG TV to the Internet via a Rostelecom Wi-Fi Router: 2026 Instructions

Modern televisions LG with function Smart TV provide access to streaming services, YouTube, browsers, and other online features—but only with a stable internet connection. If your provider— Rostelecom, and at home there is their branded router (for example, Sagemcom [2804] v7 or Sercomm RV6699), setting up Wi-Fi on your TV can be challenging, especially if the network operates on dual bands, requires login/password authentication, or hides the SSID.

In this article you will find step-by-step instructions to connect LG Smart TV (including models with webOS 4.0–23) to the router Rostelecom, as well as solutions to common problems: from the "Unable to connect to the network" error to slow video playback speed. We took into account the specifics of provider router firmware and the nuances of working with WPA3, 802.11ac and other safety standards.

What data is needed to connect?

Before you begin setting up, please prepare:

  • 📡 Wi-Fi network name (SSID) — usually indicated on the router sticker or in your personal account RostelecomIf the network is hidden, find out the exact name.
  • 🔑 Wi-Fi password — by default, this is a combination of 8-12 characters (for example, P@ssw0rd123), but you may have changed it earlier.
  • 📶 Network range — Rostelecom often distributes two networks: 2.4 GHz (For example, RTK-WiFi) And 5 GHz (For example, RTK-WiFi-5G). Televisions LG older than 2018 may not be supported 5 GHz.
  • 🔄 Security type - usually WPA2-PSK or WPA3If the router uses WPA3, and the TV doesn't support it, you'll have to temporarily switch to WPA2.

💡 Advice: If you don't remember your Wi-Fi password, you can find it in Rostelecom personal account (the "My Devices" section) or on the back of the router. If you've changed the password but forgot it, reset the router using the reset button. Reset (hold for 10 seconds) and use the default data.

⚠️ Attention: After resetting the router, all connected devices (smartphones, laptops) will be disconnected from the network. You will need to re-enter the password on each one.
📊 What connection type do you use most often?
By cable (LAN)
Via Wi-Fi 2.4 GHz
Via Wi-Fi 5 GHz
Mobile Internet (USB modem)

Choosing Between 2.4 GHz and 5 GHz: Which is Better for an LG TV?

Routers Rostelecom They usually broadcast in two ranges:

  • 📡 2.4 GHz — wide coverage area, but lower speed and higher channel congestion (interference from neighbors). Suitable for TVs LG 2015–2020.
  • 🚀 5 GHz — higher speed, less interference, but weaker penetration through walls. Supported by models LG With webOS 4.0+ (2018 and newer).
Criterion 2.4 GHz 5 GHz
Maximum speed Up to 300 Mbps Up to 1 Gbps
Range of action Passes through walls better Weaker signal at a distance
Support for older TVs Yes (all models) Only with webOS 4.0+
The influence of interference Strong (microwaves, neighbors) Minimum

If your TV LG If your phone was released before 2018, it does not support 5 GHz - choose the 2.4 GHz network, even if the speed is lower. For 2020-2026 models (e.g. LG OLED55C1 or LG NanoCell 65NANO76) is preferable 5 GHz, if the router is in the same room.

⚠️ Attention: Some routers Rostelecom (For example, Sercomm RV6699) broadcasting is disabled by default 5 GHz to save energy. To enable it, go to the router control panel (192.168.1.1) and activate the option in the section Wi-Fi → 5 GHz Settings.

Step-by-step instructions: connecting an LG TV to Rostelecom Wi-Fi

The connection process depends on the version webOS on your TV. Below are general instructions for most models (2016–2026).

Connect the TV and router to a 220V power supply.

Make sure that Wi-Fi on the router is active (the indicators are on)

Make sure the TV is within the network coverage area (no further than 10 meters from the router)

Prepare your Wi-Fi password (if you forgot it, look at the router's sticker) -->

  1. Open main menu TV button Home (or Settings) on the remote control.

  2. Go to the section Settings → Network → Wi-Fi connection.

  3. Select your network Rostelecom from the list. If there is no network, click Refresh the list or check if the SSID is hidden in the router settings.

  4. Enter your Wi-Fi password. If you are using WPA3, but the TV doesn't support it - switch to WPA2.

  5. Wait for the "Connected" message. If an error occurs, see section with solutions to problems.

🔧 For TVs with webOS 3.0 and older: the path to the network settings may differ. Try Settings → Network connection → Wi-Fi settings or All Settings → Network → Wi-Fi.

If your TV won't connect: common errors and solutions

Even if you enter the password correctly, the TV LG may give errors like "Unable to connect to the network" or "IP address not received"Let's look at the main causes and how to eliminate them.

Error: "Failed to connect"

  • 🔄 Incorrect password — Check the case of the characters (the password is case-sensitive). If you're unsure, reset your password in your personal account. Rostelecom.
  • 📵 The network is hidden (SSID is not broadcast) — Enable network visibility in your router settings or enter the SSID manually on your TV.
  • 🛡️ Incompatible security type - if the router uses WPA3, but the TV doesn't support it, switch to WPA2.
  • 📡 Weak signal - move the TV closer to the router or use Wi-Fi repeater.

Error "IP address not received"

This problem is related to the settings. DHCP on the router. Solutions:

  1. Reboot your router (unplug the power for 30 seconds).
  2. In your TV settings, select Manual IP configuration and enter: 
    IP: 192.168.1.100

    Mask: 255.255.255.0
    

    Gateway: 192.168.1.1
    

    DNS: 192.168.1.1

  3. In the router control panel (192.168.1.1) check if it is turned on DHCP server (chapter Local Area Network → DHCP).
What should I do if the TV connects, but the Internet doesn't work?

Check if your internet connection is paid for in your personal account. RostelecomIf so, reboot the router and TV. If the problem persists, go to the router settings (192.168.1.1) open the section Internet → Connection and click "Connect" (sometimes the session is interrupted).

How to switch a Rostelecom router from WPA3 to WPA2 for compatibility

Many TVs LG (especially those released before 2020) do not support the new safety standard WPA3, which is enabled by default on routers RostelecomTo connect, temporarily switch to WPA2-PSK:

  1. Open the router control panel at http://192.168.1.1 (login and password are usually admin/admin or data from the sticker).

  2. Go to the section Wi-Fi → Security (or Wireless Settings → Security).

  3. In the field Security type select WPA2-PSK (sometimes referred to as WPA2 Personal).

  4. Save the settings and reboot the router.

⚠️ After connecting the TV, you can return WPA3, but some models LG may lose connection again. In this case, leave WPA2 or update your TV firmware.

How to improve the Wi-Fi signal on your LG TV

If your TV connects, but the video is lagging or constantly buffering, the problem may be a weak signal. Here are some ways to improve it:

  • 📶 Move the router — Place it closer to the TV (ideally, in the same room). Avoid obstacles like concrete walls or metal cabinets.
  • 🔄 Change Wi-Fi channel — in the router settings (192.168.1.1) select the channel with the minimum load. For 2.4 GHz 1, 6 or 11 will do; for 5 GHz — 36, 40, 44.
  • 🛡️ Disable Wi-Fi power saving - Find the option in the router settings Saving Wi-Fi energy or Green AP and deactivate it.
  • 📡 Use a repeater - if the router is far away, install a repeater (for example, TP-Link RE305) between the router and the TV.

💡 Advice for owners LG OLED/CX/BX: these models support Wi-Fi 6 (802.11ax). If your router Rostelecom also supports Wi-Fi 6 (For example, Huawei HG633), enable this mode in the settings for maximum speed.

Problem Cause Solution
The video is lagging Weak signal or channel congestion Change your Wi-Fi channel or use 5 GHz
Constant disconnections Interference from other devices Turn off the microwave, cordless phones, and Bluetooth speakers.
Low speed Restriction from the provider Check your tariff in your personal account Rostelecom

Alternative ways to connect to the Internet

If your Wi-Fi is unstable, consider these alternatives:

  • 🔌 Cable connection (LAN) — the most stable method. Connect the TV to the router with a patch cord (cable) Ethernet). The speed will be higher and delays will be minimal.
  • 📶 Mobile hotspot - if the router Rostelecom It's glitchy, share the Internet from your smartphone (but keep in mind the traffic limit).
  • 🔄 Powerline adapters — transmit the internet through electrical wiring. Connect one adapter to the router, the second one near the TV, and connect them with a cable. Ethernet.

⚠️ Important: when connected via cable to the TV LG may need to be specified manually DNS. Use Google's public DNS (8.8.8.8 And 8.8.4.4) or Cloudflare (1.1.1.1).

How to set up a Wi-Fi extender for an LG TV

If the router Rostelecom It's far away and it's impossible to run a cable, use Wi-Fi repeater (repeater). It amplifies the signal and retransmits it. Setup instructions:

  1. Connect a repeater (eg. TP-Link RE305 or Xiaomi Wi-Fi Repeater 2) to the socket next to the TV.

  2. On your smartphone, connect to the repeater network (usually called TP-Link_Extender_XXX).

  3. Open your browser and go to the address 192.168.0.254 (or tplinkrepeater.net).

  4. Select a network Rostelecom, enter her password and save the settings.

  5. Connect your TV to the new repeater network (its name will be Your_network_name_EXT).

💡 Advice: Place the extender halfway between the router and the TV. If the signal from the router is too weak, the extender won't be able to boost it.

⚠️ Attention: Some repeaters reduce speed by 30-50%. If you have a plan Rostelecom At 100 Mbps, after the repeater, you'll have ~50–70 Mbps left. This may not be enough for 4K video.

FAQ: Frequently asked questions about connecting LG to Rostelecom

My TV connects to Wi-Fi, but YouTube doesn't work. What's the problem?

Probably blocked from the side Rostelecom or an app crash. Solutions:

  1. Restart your TV and router.
  2. Update the YouTube app in LG Content Store.
  3. Check if it is blocking Rostelecom Google services (sometimes this happens due to parental controls).
  4. Try using the browser on your TV to access YouTube.
Is it possible to connect an old LG TV (2012–2015) to Rostelecom?

Yes, but with some reservations:

  • Models before 2015 (LG LA620V, LG 42LN575V) support only 2.4 GHz And WPA2.
  • If the router uses WPA3, switch to WPA2.
  • The speed will be limited to ~50–100 Mbps, so 4K video may be slow.

For such TVs it is better to use cable connection or Powerline adapters.

Rostelecom requires login and password authorization upon connection. What should I do?

Some tariffs Rostelecom (e.g., for legal entities) require a login and password when first connecting to Wi-Fi. Solution:

  1. Open a browser on your TV (if available) and try accessing any website – an authorization window should open.
  2. Enter your login and password for your personal account Rostelecom.
  3. If you don't have a browser, log in from another device (smartphone, laptop), and then connect to the TV.

💡 Note: After authorization, the TV will connect automatically.

How to update LG TV firmware for better Wi-Fi performance?

Update webOS This can solve connection issues with modern routers. Instructions:

  1. Go to Settings → Support → Software Update.
  2. Select Checking for updates.
  3. If an update is found, confirm the installation. The TV will reboot.

⚠️ Important: during the update don't turn off the TV And don't disconnect from the internet. The process takes 10–20 minutes.

What happens if I interrupt the update?

An interrupted update may brick your TV. In this case, you'll need to reflash it via USB at a service center.

Is it possible to use mobile Internet instead of Rostelecom?

Yes, but with restrictions:

  • Connect USB modem (For example, Huawei E3372) to the TV. Models LG With webOS 3.0+ support USB modems.
  • Use access point on your smartphone (but keep in mind the traffic limit).
  • Please note that mobile internet may be slower and less stable than wired internet. Rostelecom.

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