How to Switch Your Wi-Fi Adapter to 5 GHz: Complete Instructions for All Devices

Networks Wi-Fi 5 GHz are becoming increasingly popular due to lower channel congestion and higher data transfer rates compared to traditional networks 2.4 GHzHowever, not all users know how to properly switch their adapter to this frequency—especially if the device automatically connects to a slower but longer-range band. In some cases, the problem lies in the router settings, while in others, it lies in limitations of the adapter itself or the drivers.

Many modern gadgets (smartphones, laptops, TVs) support dual-band Wi-Fi, but they may default to the 2.4 GHz network due to better compatibility. In this article, we'll look at how to force a switch to 5 GHz on different platforms—from Windows 10/11 to Android And smart TVs, and we'll also tell you why this is sometimes impossible and what to do in such cases.

⚠️ Attention: Not all Wi-Fi adapters support the 5 GHz band. If your device was manufactured between 2012 and 2014, it likely only supports 2.4 GHz. Check your model's specifications before setting it up.

Why Use 5GHz Instead of 2.4GHz

Transition to 5 GHz It offers several key advantages, but it also has limitations. Let's explore the pros and cons so you can make an informed decision.

The main advantage is less channel congestionMost household devices (from microwaves to wireless mice) operate in the 2.4 GHz band, which creates interference. At 5 GHz, such interference is significantly reduced, resulting in a more stable connection and higher speeds.

Second - wider channels. If at 2.4 GHz the maximum channel width is usually 20 or 40 MHz, then at 5 GHz you can use 80 or even 160 MHz (in the standard Wi-Fi 6/6E). This directly affects throughput.

However, there are also disadvantages:

• 📉 Shorter range — The 5 GHz signal has difficulty penetrating walls and ceilings. In a larger apartment or house, an additional repeater may be required.
• 🔌 Not all devices support 5 GHz. — Older smartphones, printers, or smart bulbs can only operate at 2.4 GHz.
• 🔄 Automatic switching — Some routers and adapters select the band themselves, which can interfere with forced connection to 5 GHz.

⚠️ Attention: In some countries (such as Russia), some 5 GHz channels (52–64 and 100–140) require registration for legal use. Before setting up, check local regulations or use automatic channel selection on your router.

How to check if your adapter supports 5GHz

Before attempting to switch, make sure your device is capable of operating at 5 GHz. The method for checking varies depending on the platform.

On Windows 10/11

Open device Manager (Win + X → Device Manager) and find the section Network adaptersRight-click on the name of your Wi-Fi adapter (for example, Intel Wi-Fi 6 AX200 or Qualcomm Atheros QCA9377) and select Properties.

Tab Additionally often contains parameters like Wireless Mode, 802.11n/ac or Band. If there is a mention there 5 GHz, 802.11ac or 802.11a — the adapter supports this range. You can also check the model's specifications on the manufacturer's website.

How can I find out the adapter model if it is not displayed?

If you see an unknown device in Device Manager, open Details → Equipment ID. Copy the top line (starts with PCI\VEN_) and search for it on Google - this way you will find the exact model.

On Android

For smartphones and tablets, checking is more difficult, as manufacturers often hide technical details. The most reliable method is to look at the model's specifications on the website. GSMArena or 4PDALook for lines like:

• 📱 Wi-Fi 802.11 a/b/g/n/ac - supports 5 GHz.
• 📱 Dual-band Wi-Fi or Dual-band.
• 📱 802.11 b/g/n only - works only at 2.4 GHz.

You can also install the application WiFi Analyzer (or similar) and see which 5 GHz networks it "sees." If the list is empty and the router is definitely broadcasting on 5 GHz, the adapter doesn't support that range.

On routers and smart devices

For routers, check the sticker on the case - it usually indicates the supported standards (802.11ac = 5 GHz). Smart TVs (Samsung, LG, Sony Bravia) and prefixes (Apple TV, NVIDIA Shield) almost always support 5 GHz if released after 2016.

Configuring Windows to Force a 5GHz Connection

If your adapter supports 5GHz, but Windows stubbornly connects to 2.4GHz, try the following methods.

Method 1: Change the network priority

Windows remembers networks and connects to them in order of "priority." To force the system to select 5 GHz:

1. Open Settings → Network and Internet → Wi-Fi.
2. Click Managing known networks.
3. Find your 5 GHz network (usually it has a suffix in its name _5G or -5GHz) and click Properties.
4. Check the box Connect automatically and remove it from the 2.4 GHz network.

Method 2: Configure the adapter in Device Manager

Some adapters allow you to manually set the preferred range:

1. Open Device Manager → Network Adapters.
2. Right-click on the adapter → Properties → Advanced.
3. Find the parameter Preferred Band (or Wireless Mode, Band).
4. Set value 5 GHz only or Prefer 5GHz band.

⚠️ Attention: After this setting, the adapter may no longer see 2.4 GHz networks. If you need to connect to the old network (for example, in a hotel), return the setting to Auto.

Update your adapter driver|Check the specifications for 5GHz support|Disable your VPN (it may be interfering with the connection)|Reboot your router-->

Method 3: Update drivers

Outdated drivers may limit the adapter's functionality. To update them:

1. Open device Manager, find your adapter.
2. Right click → Update driver → Automatic search.
3. If Windows does not find updates, download the driver from the manufacturer's website (Intel, Qualcomm, Realtek).

Critical Information: On laptops with adapters Realtek RTL8188EE or RTL8723BE Manual installation of drivers from the official website is often required—standard Windows drivers may not support 5 GHz.

Switching to 5 GHz on Android smartphones

Most Android devices don't have a direct "select range" option, but there are workarounds.

Method 1: Separating networks on a router

If your router broadcasts one network on both ranges (for example, MyWiFi), separate them:

1. Go to the router's web interface (usually 192.168.0.1 or 192.168.1.1).
2. Find the section Wi-Fi or Wireless network.
3. Activate the option Split ranges (or Enable SSID Separation).
4. Set different names, for example MyWiFi_2G And MyWiFi_5G.
5. Save the settings and connect to the network with the suffix _5G.

Method 2: Forced Selection Apps

Some manufacturers (eg Samsung or Xiaomi) hide the range settings in the engineering menu. To access them:

1. Install the application WiFi Analyzer or Network Signal Info.
2. Check if your phone can see 5 GHz networks. If so, try connecting manually.
3. For Samsung: enter into the phone dialer *#0011#, then press Menu → Wi-Fi and select 5GHz.

⚠️ Attention: Changes to the engineering menu may cause Wi-Fi instability. Do not change settings unless you are sure of their purpose.

Configuring your router for optimal performance on 5 GHz

Sometimes the problem isn't with the adapter, but with incorrect router settings. Let's look at the key parameters.

1. Selecting a channel and width

The 5 GHz band has many more channels available than the 2.4 GHz band. Optimal settings:

• 📶 Channel: Select 36, 40, 44 or 48 (less busy).
• 📊 Channel width: 40 MHz or 80 MHz (For Wi-Fi 5/6).
• 🔄 Mode: 802.11a/n/ac (or 802.11ax For Wi-Fi 6).

Avoid channels 149–165 (DFC), if you are not sure about their legality in your country.

2. Transmission power

On some routers (for example, ASUS or TP-Link) you can increase the transmission power for 5 GHz:

1. Go to Wireless Network → Professional Settings.
2. Find the parameter Tx Power (or Transmit Power).
3. Set value High or 100%.

⚠️ Attention: Increasing the power may cause the router to overheat and shorten its lifespan. Use this option only if the signal is weak.

3. Disabling compatibility with legacy devices

If your network doesn't have any devices that only operate at 2.4 GHz, you can disable support for older standards:

• 🔌 In your Wi-Fi router settings, find the option Legacy Mode or 802.11b/g Protection.
• 🔄 Disable it - this will increase speed on modern devices.

How do I reset my router if Wi-Fi stops working after making changes?

Press and hold the button Reset Press and hold the reset button on the back of the router for 10–15 seconds. After the reset, connect to the default network (the name and password are on the sticker) and set it up again.

Troubleshooting 5GHz Connection Issues

If after all the settings the device still does not connect to 5 GHz, check the following points.

1. Interference from other devices

At 5 GHz, the following may interfere:

• 📡 Other Wi-Fi networks (especially on channels 36–48).
• 📱 Wireless headphones or speakers (eg. Bluetooth 5.0 may conflict).
• 🔌 Microwave ovens (less frequently than 2.4 GHz, but induced interference is possible).

Solution: Change the channel in your router settings or move the device closer to the access point.

2. Country restrictions

Some routers (especially those imported from abroad) may block some 5 GHz channels due to local regulations. To unblock:

1. Go to your router settings.
2. Find the section Wireless → Country/Region.
3. Please select a country where all channels are allowed to be used (e.g. United States).

⚠️ Attention: Using unauthorized channels may violate local laws. Please check current regulations before changing your region.

3. Problems with drivers or firmware

If the adapter previously worked at 5 GHz, but suddenly stopped:

• 🔄 Reinstall the driver (download from the manufacturer's website).
• 📥 Update your router firmware (section Administration → Firmware Upgrade).
• 🔌 Check if power saving mode is enabled (on laptops, it can disable 5 GHz to save battery).

FAQ: Frequently Asked Questions about Switching to 5 GHz

My laptop can't see 5 GHz networks, but the specifications say the adapter supports 802.11ac. What's wrong?

Most likely, the problem is with the drivers. Try:

1. Uninstall the current driver via device Manager.
2. Download the latest version from the adapter manufacturer's website (not from the laptop's website!).
3. Install the driver manually by selecting the file .inf.

If this doesn't help, check if the adapter is disabled in the BIOS (on some laptops Lenovo or HP Wi-Fi can be disabled using hardware).

Is it possible to use 2.4GHz and 5GHz on one router at the same time?

Yes, almost all modern routers support it. simultaneous operation in both rangesTo do this:

1. Activate both networks in the router settings.
2. Set different names (SSIDs) for 2.4 GHz and 5 GHz (e.g. Home_2G And Home_5G).
3. Connect devices to the desired network manually.

Some routers (eg. ASUS RT-AX88U) support Smart Connect — automatic device band assignment. However, in this case, you won't be able to force 5 GHz.

Why is the speed on 5 GHz slower than on 2.4 GHz?

It's paradoxical, but possible. Reasons:

• 📶 Weak signal: 5 GHz has poorer penetration through walls. Check the signal strength in the adapter settings.
• 🔄 Congested channel: Use the app WiFi Analyzerto find a free channel.
• 🖥️ Router limitations: Cheap models (for example, TP-Link TL-WR840N) can "choke" the speed at 5 GHz.

Solution: Change the channel, reduce the width to 40 MHz or move the router closer to the device.

Is it possible to force a smart TV to connect to 5GHz?

Most TVs (Samsung QLED, LG OLED, Sony Bravia) automatically select the band. To force use of 5 GHz:

1. Separate the networks on the router (create separate SSIDs for 2.4 GHz and 5 GHz).
2. In the TV settings, select the network with the suffix _5G.
3. If the option is missing, update your TV firmware.

On some models Samsung you can turn on the mode 5 GHz Only in the service menu (enter on the remote control Mute → 1 → 8 → 2 → Power).

Will 5GHz work through a repeater?

Depends on the repeater model:

• 🔄 Dual-band repeaters (For example, TP-Link RE605X) support 5 GHz.
• 🚫 Single-band (For example, TP-Link TL-WA850RE) work only at 2.4 GHz.

Check the repeater specifications before purchasing. Also, keep in mind that when using the 5 GHz band through a repeater, speeds may drop by 30-50% due to double data transfer.