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Can't connect to the internet whilst using 5GHz WiFi

Anonymous
2024-11-27T23:08:04+00:00

A couple of months ago out of nowhere my PC stopped being able to connect to the internet whilst being connected to 5GHz WiFi. It connects to the router fine but I can't seem to get any internet connection whilst on it.

Things to note:
The same WiFi network works completely fine on all other devices I've tried
The same PC works completely fine on 2.4GHz networks from the same router (but slower as expected) or on ethernet.
I experienced the same issues whilst connected to a different router.

Things I've tried to fix the issue:
Forgetting the network
Changing settings in device manager/windows settings
Reinstalling and rolling back WiFi drivers
Changing to older versions of WiFi and WPA2
Connecting to a different router
Connecting to my phone hotspot
Using a different WiFi M.2 card on my PCIe antenna
Re installing Windows
Factory resetting my router

Updating the BIOS
Doing a DNS flush and IPConfig release/renew on command prompt

I'm all out of ideas now.

PC specs:
AMD Ryzen 5 5700x
Nvidia 3060Ti founders
ASUS PCE-AX3000 WiFi 6 adapter (Link to WiFi adapter specs)
Windows 11 home

Imgur link to WiFi details

Thanks in advance!

Windows for home | Windows 11 | Internet and connectivity

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  1. Anonymous
    2024-12-04T09:58:03+00:00

    Dear TheJackBaldy

    Thank you for posting in the Microsoft community.

    I'm sorry to hear that you're experiencing issues connecting to the Internet while using 5GHz WiFi. Based on the information you've provided, you've tried many of the common solutions, but the problem persists. Here are some further troubleshooting and resolution steps that may help you resolve the issue.

    1. Check network adapter settings

    Make sure your WiFi adapter settings are correct, especially the IPv4 and IPv6 settings.

    Open the network adapter setting

    Right-click on the Start menu and select Settings.

    Click Network and Internet, then select Status.

    Click Change adapter options.

    Check the adapter properties:

    Right-click on your WiFi adapter and select Properties.

    Ensure that Internet Protocol version 4 (TCP/IPv4) and Internet Protocol version 6 (TCP/IPv6) are both selected.

    Double-click on Internet Protocol version 4 (TCP/IPv4) and make sure it is set to “Obtain an IP address automatically” and “Obtain DNS server addresses automatically”.

    2. Modify the advanced settings of the WiFi adapter

    Sometimes the advanced settings of the WiFi adapter may affect the connection.

    Open the network adapter settings as described above.

    Right-click on your WiFi adapter and select Properties. 3. Click on Configuration and go to Properties.

    Click Configuration and go to the Advanced tab.

    Check the following settings:

    802.11n/ac/ax: Make sure it is enabled.

    Wireless Mode: Try switching to a different mode (e.g., 802.11a/n/ac).

    Power Saving Mode: Set it to “Maximum Performance”.

    QoS Packet Scheduling: Make sure it is enabled.

    3. Check Router Settings

    Although you have already reset the router, there are some settings that you may need to check again.

    Log in to the router's management interface (usually 192.168.1.1 or 192.168.0.1 via a browser).

    Make sure that 5GHz WiFi is enabled and not set to hidden.

    Check the channel settings: try changing the channel to 36, 40, 44, or 48 (these are usually the less-interfering channels).

    Make sure WPA2-PSK or WPA3 encryption is set correctly, and try to avoid using WEP.

    4. Check firewalls and security software

    Sometimes firewalls or security software may block Internet connections.

    Temporarily disable any third-party firewall or security software and check if you can connect to the Internet. 2.

    If you can connect normally after disabling, check the firewall settings to make sure that WiFi connection is not blocked. 7.

    5. Reset network using command prompt

    Trying to reset the network settings may help to solve the problem.

    Press Win + S to search for CMD, right-click and select Command Prompt (run as administrator).

    Type the following command and press Enter:

    netsh winsock reset

    netsh int ip reset

    ipconfig /release

    ipconfig /renew

    ipconfig /flushdns

    Reboot the computer.

    6. Troubleshooting Hardware Problems

    If none of the above steps resolve the problem, you may need to consider a hardware failure.

    Check the WiFi adapter: Make sure the PCIe WiFi adapter is securely connected on the motherboard.

    Try another USB WiFi adapter: If available, try using a USB WiFi adapter to see if it connects properly to a 5GHz network.

    Summary

    With the above steps, you should be able to further troubleshoot and resolve the 5GHz WiFi connection to the Internet. If the problem persists, you can contact your local network operator for in-home assistance.

    We hope these suggestions will help you.

    Best Wish

    Shawn.Z-MSFT | Microsoft Community Support Specialist

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