How to connect a new computer to Wi-Fi: from drivers to a stable signal

Connecting a new computer to Wi-Fi for the first time often presents an unexpected challenge, even for experienced users. It would seem simple—select a network, enter the password, and you're done. But in practice, users encounter adapters missing from the device manager, authentication errors, or the network suddenly disappearing from the list of available networks. This problem is especially acute for owners. ASUS ROG, MSI or Lenovo Legion, where manufacturers sometimes disable Wi-Fi modules in the BIOS by default to "optimize performance."

In this article, we will cover not only the basic connection steps, but also hidden settings, which will help you avoid common mistakes. For example, why Windows 11 may ignore encrypted networks WPA3How to turn on Wi-Fi on MacBook Air M2 without a key F2, and what to do if the router TP-Link Archer AX6000 Your PC isn't "recognized" despite the correct password. We'll pay special attention to troubleshooting issues—from checking drivers to analyzing interference on the 5 GHz channel.

1. Check hardware compatibility: Does your PC have a Wi-Fi adapter?

Before attempting to connect to the network, make sure your computer is physically capable of doing so. About 15% of desktop PCs (especially budget builds) don't come with Wi-Fi modules by default—manufacturers save money by assuming users will connect via a cable. There are three ways to check for the presence of an adapter:

  • 🔍 External examination: on the back panel of the case look for antennas (two thin "horns" 5-10 cm long) or a connector M.2 Key E on the motherboard (for discrete modules).
  • 🖥️ device Manager: V Windows click Win + X → "Device Manager" → expand the "Network Adapters" tab. Look for devices with the words Wireless, Wi-Fi or 802.11 (For example, Intel Wi-Fi 6 AX200).
  • 📋 Documentation: Check the specifications of your model on the manufacturer's website. For example, Dell XPS 15 9530 has a built-in Killer AX1675, A HP Pavilion Desktop TP01 — Ethernet only.

If you don't have an adapter, you'll need to purchase one. The following are ideal for a desktop PC:

  • 🔌 USB adapters (For example, TP-Link Archer T3U - supports Wi-Fi 6 and speed up to 1300 Mbps).
  • 🔧 PCIe cards (For example, ASUS PCE-AX58BT with external antennas for better signal).
  • 📱 M.2 modules (For example, Intel Wi-Fi 6E AX210 for laptops and compact cases).
⚠️ Attention: Some motherboards (eg. ASUS Prime B650) have a connector M.2 Key E, but they don't come with "golden fingers" (Wi-Fi contacts). Check compatibility before purchasing!
📊 What type of Wi-Fi adapter does your PC use?
Built-in (laptop/monoblock)
PCIe card
USB adapter
M.2 module
Don't know

2. Enabling Wi-Fi at the BIOS and operating system level

Even if the adapter is physically present, it may be disabled in the BIOS settings or via a key combination. This is a common problem with laptops. Lenovo And HP, where Wi-Fi is blocked to save battery power.

Step 1: Check BIOS

  1. Restart your PC and enter the BIOS (usually the keys Del, F2 or Esc when loading).
  2. Find the section AdvancedOnboard Devices Configuration (the name may differ).
  3. Make sure the parameters Wi-Fi, Wireless LAN or WLAN installed in Enabled.
  4. Save changes (F10) and reboot.

Step 2: Activation in Windows

  • 🪟 Click Win + A → Check if Airplane mode is enabled (if so, disable it).
  • 🔧 In Parameters (Win + I) go to Network and Internet → Wi-Fi and activate the slider.
  • 🔄 If the slider is gray, update the driver (more on this in the next section).

On macOS Wi-Fi can be turned on via the icon in the menu bar or in System Preferences → NetworkIf there is no icon, check your settings. Activity Monitor (possibly a process airportd hung).

☑️ Check before connection

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3. Installing and updating drivers: why Windows doesn't see the network

About 40% of Wi-Fi connection issues are related to outdated or missing drivers. This is especially true for new adapters. Wi-Fi 6E (For example, Intel AX210 or Qualcomm FastConnect 6900), which Windows 10 does not recognize without manual software installation.

How to update the driver automatically:

  1. Open device Manager (Win + X).
  2. Expand "Network adapters", find your Wi-Fi module (for example, Realtek RTL8852AE).
  3. Right-click → "Update driver" → "Automatic search".

Manual installation (if automatic search did not help):

  1. Download the driver from the adapter manufacturer's website (not the motherboard's!):
  • Select the adapter model (check in Device Manager).
  • Install the driver and restart your PC.
  • For Linux (For example, Ubuntu 22.04) firmware installation may be required:

    sudo apt update
    

    sudo apt install firmware-iwlwifi

    ⚠️ Attention: Drivers from sites like DriverPack Solution often contain malware. Use only official sources!
    How can I find out the exact model of my Wi-Fi adapter?

    Open Command line (Win + Rcmd) and enter:

    wmic nic get name, manufacturer, description

    Find the device mentioned in the list Wireless or 802.11.

    4. Finding and connecting to a network: from passwords to hidden SSIDs

    Once the adapter is ready, you can begin connecting it. However, there are some nuances here too: the differences between 2.4 GHz And 5 GHz to hidden networks that are not displayed in the list.

    Basic steps for Windows:

    1. Click on the Wi-Fi icon in the tray (bottom right).
    2. Select your network from the list. If it's not there, click "Hidden network" and enter SSID manually.
    3. Enter your password (make sure it is case-sensitive!).
    4. Check the box "Connect automatically".

    Common mistakes and solutions:

    Error Cause Solution
    "Unable to connect to the network" Incorrect password or encryption type Check your password; change the encryption in your router settings WPA3 on WPA2-PSK
    The network disappears from the list Weak signal or interference on the channel Switch to 2.4 GHz or change the channel in the router (for example, from 6 to 11)
    "Restricted Access" DHCP or IP address issues At the command prompt, enter:
    ipconfig /release
    

    ipconfig /renew

    There is a connection, but no internet MAC or DNS blocking Check your router settings (section MAC Filter); try changing DNS to 8.8.8.8

    For macOS (For example, Ventura 13.4) You may need to reset your network settings:

    1. Open System Preferences → Network.
    2. Select Wi-Fi → click "Advanced".
    3. Remove your network from the Favorite Networks list and add it again.
    4. 5. Signal Optimization: Why Wi-Fi Slows Down or Drops Out

      Even after successful connection, users are faced with low speed, constant breaks or high pingThe reasons may lie in the router settings, interference, or adapter limitations.

      Checking speed and channels:

      • 📊 Use Speedtest To measure speed, if it's below 50% of the rate, there's a signal issue.
      • 📡 In the router settings (192.168.0.1 or 192.168.1.1) check:
        • Opening hours: select 802.11ac (For 5 GHz) or 802.11n (For 2.4 GHz).
        • Channel width: for 5 GHz optimally 80 MHz, For 2.4 GHz20 MHz.
        • Channel: Manually select the least busy one (e.g. 36 or 149 for 5 GHz).

      Hardware solutions:

      • 📍 Move your router closer to your computer (or vice versa). A 20 cm thick concrete wall reduces the signal by 50-70%.
      • 🛡️ Use repeater (For example, TP-Link RE605X) or Mesh system (For example, ASUS ZenWiFi AX) for large spaces.
      • 🔄 Update your router firmware (in the section Administration → Firmware Upgrade).
      ⚠️ Attention: If you use USB adapter, connect it through USB 3.0 (blue connector) and use an extension cord to move the adapter away from the PC case (interference from the power supply reduces speed by 30-40%).

      6. Security: How to protect your connection from hacking

      A Wi-Fi connection not only provides internet access but also a potential vulnerability for hackers. In 2026, one in five home network hacks was due to weak passwords or outdated encryption protocols.

      Minimum safety requirements:

      • 🔐 Use WPA3-PSK (or WPA2-PSKif the devices do not support WPA3).
      • 🔑 The password must contain at least 12 characters, including uppercase letters, numbers, and special characters (e.g. K7#pL9!mQ2$vR5).
      • 🚫 Turn it off WPS in the router settings - this protocol is vulnerable to brute-force attacks.
      • 📋 Turn on MAC filtering (allow connection only for MAC addresses of your devices).

      Additional measures:

      • 🌐 Set up guest network for friends' devices, it will be isolated from your main network.
      • 🔄 Change your Wi-Fi password regularly (every 3 months).
      • 🛡️ Install on PC firewall (For example, GlassWire) to monitor suspicious connections.

    Check if there are any unauthorized devices connected to your network:

    1. Go to your router settings (192.168.0.1).
    2. Find the section DHCP Clients List or Connected Devices.
    3. Check the list against your devices. Unknown MAC addresses indicate a hack.

    7. Diagnosing problems: what to do if nothing helps

    If you still can't connect to Wi-Fi after following all these steps, use system diagnostic tools.

    In Windows:

    1. Right-click the Wi-Fi icon in the tray → "Network troubleshooting".
    2. Follow the wizard's instructions. If the problem persists, check event logs:
      Control Panel → Administrative Tools → Event Viewer → Windows Logs → System

      Look for errors with the source Netwtw04 or WLAN-AutoConfig.

    On macOS:

    1. Open Applications → Utilities → Console.
    2. Enter in search airport or wi-fi to filter logs.

    Universal steps:

    • 🔄 Reboot your router (unplug it for 30 seconds).
    • 🔧 Reset network settings on your PC:
      • IN Windows: Settings → Network & Internet → Network reset.
      • IN macOS: delete the file /Library/Preferences/SystemConfiguration/NetworkInterfaces.plist and reboot.
    • 📡 Check your router for overheating (if it's hot, let it cool for 10-15 minutes).
    ⚠️ AttentionIf the problem occurs only on one device, while the others connect fine, the adapter or its driver is at fault. If nothing connects, the problem lies with the router or ISP.

    FAQ: Answers to Frequently Asked Questions

    🔹 Why doesn't Windows 11 detect 5 GHz networks?

    This is a typical problem with adapters. Realtek and some models IntelSolutions:

    1. Update the driver to the latest version from the manufacturer's website.
    2. Change the mode in the router settings 802.11 With 802.11ac on 802.11a/n/ac.
    3. Disable the function in your router 160 MHz (leave 20/40/80 MHz).
    🔹 How do I connect to Wi-Fi without a password (for example, at a hotel)?

    Most public networks use portal authenticationAfter connection:

    1. Open any browser (even if there is no internet).
    2. You should be redirected to the login page. If not, enter it in the address bar. 1.1.1.1 or neverssl.com.
    3. Please enter your login details (room number, last name or access code).

    If the page doesn't open, check your proxy settings or contact the establishment's support team.

    🔹 Is it possible to connect a PC to Wi-Fi via a smartphone?

    Yes, that's what it's called modem mode (tethering). Instructions:

    1. On Android: Settings → Network & Internet → Hotspot & Tethering → USB Tethering (or Wi-Fi hotspot).
    2. On iPhone: Settings → Tethering (turn on and set a password).
    3. Connect your PC to the created network (the name will be the same as your phone).

    Please note: Some operators block tethering or charge extra for it.

    🔹 Why is my Wi-Fi speed slower than my cable connection?

    This is normal: Wi-Fi is always slower than Ethernet due to:

    • Interference from other devices (microwaves, wireless headphones).
    • Protocol limitations (maximum for Wi-Fi 6 — ~1.2 Gbps, for cable Cat6 — 10 Gbit/s).
    • Distances to the router and obstacles.

    To reduce the difference:

    • Use 5 GHz instead of 2.4 GHz.
    • Connect to the router via MU-MIMO (if supported).
    • Disable background downloads (torrents, cloud syncs).
    🔹 How to connect to a hidden Wi-Fi network?

    Hidden Networks (Hidden SSID) do not broadcast their name, but you can connect to them manually:

    1. IN Windows:
      Settings → Network & Internet → Wi-Fi → Manage known networks → Add new network

      Please specify SSID, security type and password.

    2. IN macOS:
      System Preferences → Network → Wi-Fi → Advanced → (+) Add network

    Make sure the option is disabled in your router settings. Hide SSID (enabling it does not improve security, but only complicates the connection).