A message suddenly appears that Wi-Fi won't connect to my LG TV., can disrupt your plans for an evening of watching movies or streaming online. It's especially annoying when the network was previously stable, but now the device returns error code 137, which isn't always clear to the average user. This problem can be caused by a software glitch in the webOS operating system, a conflict with router settings, or even physical interference in the airwaves.
Before panicking and taking your appliance to a service center, it's important to conduct a thorough diagnosis, as in the vast majority of cases, you can fix the problem yourself. Error 137 This error code often indicates an inability to establish a connection with the authentication server or an IP address conflict within the local network. Understanding the nature of this code is the first step to quickly restoring internet access.
In this article, we'll take a detailed look at all possible causes of the failure and offer step-by-step action algorithms. We'll cover both standard reboot methods and more complex network parameter manipulations that will help restore your Smart TV into operation without unnecessary costs.
⚠️ Please note: The menu interface on LG TVs may vary slightly depending on the webOS version (3.0, 4.0, 5.0, 6.0, and later). The layout of the menu items may vary, but the navigation logic remains similar.
The main causes of error 137
The code 137 appears on your screen LG TV — This is a signal that the device cannot complete the handshake procedure with the router. This is often due to the fact that MAC address The device is blocked or not recognized by the router. In some cases, the internet service provider (ISP) binds network access to a unique hardware identifier, and if the TV or router is changed, access is blocked.
Another common cause is a malfunctioning DHCP server, which is responsible for automatically assigning IP addresses. If the address pool is exhausted or an error occurs in the lease table, the TV simply doesn't receive the necessary credentials to log in to the network. It's also worth considering that antivirus software The router or the network itself may block the connection of a new device, considering it suspicious.
Software bugs in the webOS operating system itself shouldn't be discounted either. A failed update or a power surge can corrupt network settings. In such a situation, even correct passwords and settings won't help unless the system is reset to factory defaults or the configuration files are manually corrected.
Primary diagnostics and simple reboot
The most basic, yet surprisingly effective, solution is a complete reboot of all components involved. Many users ignore this step, relying on the TV's sleep mode. However, resetting the network modules requires a complete power outage. Turn off the TV using the remote control and then unplug the power cord.
While the TV is off, it's also recommended to reboot the router. To do this, unplug it for 10-15 seconds. This will clear the device's cache and resolve any Wi-Fi issues. After turning on the router, wait 2-3 minutes for all services to fully load before turning on the TV.
After turning on your LG TV, try connecting again. If error 137 persists, proceed to more advanced settings.
☑️ Hard Reset Algorithm
Setting the date, time, and region
One of the hidden but critical reasons why Wi-Fi won't connect, is an incorrectly set date and time. SSL/TLS security protocols used to verify passwords and certificates require time synchronization. If the TV's date is set to, say, 2015, the security server will refuse the connection, which may appear as error 137.
To check and adjust, go to the settings menu. The path usually looks like this: Settings → All settings → General → Time and DateMake sure automatic network synchronization (NTP) is enabled. If automatic synchronization doesn't work due to lack of internet access, set the current date and time manually.
Also check your device's region. In some cases, changing the region (for example, from Russia to Ukraine or Kazakhstan and back) can unlock network modules if the issue is related to regional restrictions in the firmware or LG servers. However, after changing the region, you may need to reset all settings.
Changing DNS servers and manually setting IP
If automatic settings aren't working, manually setting DNS servers is often the best solution. Providers provide their own DNS servers by default, which can be unstable or block TV requests. Using public, fast servers from Google or Cloudflare often resolves error 137 instantly.
To do this, go to Settings → Network → Wi-Fi connection → Advanced settingsFind the "Edit" or "Manual Configuration" option. You will need to change the DNS setting from "Automatic" to "Enter Manually." Enter "Preferred Server" as 8.8.8.8, and the alternative - 8.8.4.4These are Google servers, which are highly stable.
In some cases, manually setting the IP address can also help to avoid network conflicts. Make sure the selected IP address isn't already in use by another device. Below is a table with recommended parameters for manual configuration, which are suitable for most home routers.
| Parameter | Value for manual tuning | Description |
|---|---|---|
| IP Address | 192.168.1.150 | Unique address in your subnet (last digit 2-254) |
| Subnet mask | 255.255.255.0 | Standard mask for home networks |
| Gateway | 192.168.1.1 | Your router's address (often 192.168.0.1 or 192.168.1.1) |
| DNS 1 | 8.8.8.8 | Google's main server |
| DNS 2 | 8.8.4.4 | Google's fast server |
MAC address cloning and binding to the provider
One specific cause of error 137 is internet access binding by MAC address. Many ISPs record the unique physical address (MAC address) of the first connected device (often a computer or an old router). When you connect your TV directly or through a new router, the ISP blocks the connection because it doesn't recognize the equipment.
The solution is to clone the MAC address. If you have access to your router settings (usually through a browser at 192.168.0.1 or 192.168.1.1), look for the WAN or Internet section. There should be an option there. Clone MAC Address (Clone MAC address). You can enter the MAC address of a device that previously connected to the internet, or use the MAC address of the router itself, if your provider allows it.
If you're connecting your LG TV directly via cable or Wi-Fi without a router (which is rare, but possible), you'll need to call your provider's technical support. Provide them with the new MAC address, which is displayed in the TV's network settings (under "Connection Information" or on the sticker on the back panel). Access should be restored after the database is updated.
⚠️ Note: The MAC address consists of 12 characters (numbers and the letters AF). When entering it manually, be careful; a mixed-up number will prevent you from connecting. The format typically looks like this: AA:BB:CC:11:22:33.
Where can I find the MAC address on my LG TV?
There are two ways to find the MAC address: 1. On the physical sticker on the back of the TV (labeled "MAC Address"). 2. In the TV menu: Settings → Network → Wi-Fi (or Wired) → Connection Information / Advanced Wi-Fi Settings. The Wireless MAC Address will be listed there.
Reset network settings and update firmware
If manipulating the DNS and MAC address doesn't help, there may be errors in the network configuration files. In this case, it's advisable to reset the network settings to factory defaults. This won't delete your apps or accounts, but it will restore your connection settings to their original state.
To do this, go to Settings → All settings → General → Reset settingsSome models have a separate "Reset Network Settings" option. After performing this procedure, the TV will reboot, and you'll need to re-enter the Wi-Fi password. This often resets the network module and resolves error 137.
It's also crucial to check for system updates. LG developers regularly release patches that fix compatibility issues with new router encryption standards. Go to Settings → All settings → General → About TV → Check for updatesIf an update is found, install it. If the download via Wi-Fi fails due to an error, you can try updating the firmware via a USB drive by downloading the file for your model from the official LG website.
2.4 GHz vs. 5 GHz and other router nuances
Modern routers often operate in two bands: 2.4 GHz and 5 GHz. Some older or budget LG TV models may not work correctly in the 5 GHz band or in mixed mode. If your router broadcasts the same network with the same name for both bands, the TV may become confused and display a connection error.
Try accessing your router settings and temporarily separating the networks by giving them different names (for example, HomeWiFi and HomeWiFi_5G). Connect your TV to the 2.4 GHz network. This band has a longer range and penetrates walls better, which is often more important than high speeds for watching 4K video (which only requires 25 Mbps).
Also check the encryption type in your router settings. For LG TVs, the most compatible and stable standard is WPA2-PSK (AES). If you have the outdated TKIP or the newer WPA3 encryption enabled, your TV may fail authentication. Changing the encryption type to WPA2/WPA Mixed often solves the problem.
What should I do if nothing helped and error 137 remains?
If all the above methods fail, the problem may be hardware-related. The Wi-Fi module inside the TV may be faulty. In this case, two options remain: repair at a service center, using an external Wi-Fi adapter (if supported by the model), or connecting via a LAN cable. You can also set up internet sharing from your smartphone, but this is a temporary solution.
Can an antivirus on a computer block a TV?
Yes, if you have file sharing or a media server (DLNA) enabled on your local network, strict firewall settings on your PC may be blocking the TV's requests. Try temporarily disabling your antivirus software on your computer or adding the TV to the list of trusted devices in your antivirus settings.
Does internet speed affect error 137?
Slow speed alone doesn't cause error 137; this code indicates a connection failure, not slow data transfer. However, if the router is overloaded with too many connected devices, it may stop issuing new IP addresses, causing the error. Try disconnecting other devices from the Wi-Fi and check your TV connection.
Do I need to reset my TV to factory settings (Hard Reset)?
A full reset (removing all apps and accounts) should only be used as a last resort. A regular network reset is safer and more effective for resolving Wi-Fi issues. A full reset makes sense if error 137 appeared after an unsuccessful system update or the installation of a questionable app.