ASUS VivoBook S 15 OLED AMD WiFi Dropping Windows 11: Fix Guide

The ASUS VivoBook S 15 OLED AMD is a slim productivity laptop with a MediaTek or Intel WiFi adapter. When WiFi keeps dropping on Windows 11, browsing and streaming become unreliable. This guide covers every cause and fix for WiFi disconnection on the VivoBook S 15 OLED AMD.

Why ASUS VivoBook S 15 OLED AMD WiFi Is Dropping

WiFi Adapter Power Management Cutting Connection

Windows 11 enables aggressive WiFi power management on laptop adapters by default. This setting powers down the WiFi adapter between active transmissions to save battery. On the VivoBook S 15 OLED AMD, this can cause the connection to drop and fail to reconnect quickly, especially after short periods of idle activity. Disabling WiFi power saving in Device Manager is typically the fastest fix.

ASUS WiFi Driver Not Validated for the AMD Platform

The VivoBook S 15 OLED AMD uses an AMD Ryzen processor with the AMD chipset managing the PCIe bus. If the WiFi driver installed by Windows Update is not validated for the AMD platform variant of the VivoBook, connection stability degrades. ASUS provides a platform-specific WiFi driver on their support page that is tested with the AMD chipset and antenna configuration. Signs of a driver mismatch include:

• WiFi drops every few minutes regardless of router proximity
• Reconnects briefly then drops again in a loop
• Other devices on the same network remain stable
• Issue started immediately after a Windows Update

Dual-Band Roaming and Band Steering Conflict

The VivoBook S 15 OLED AMD WiFi adapter automatically roams between 2.4GHz and 5GHz bands. If the router uses the same SSID for both bands and aggressively steers clients, the laptop may oscillate between bands during roaming, causing brief disconnections. This appears as WiFi dropping every few minutes even though the signal is strong.

How to Fix ASUS VivoBook S 15 OLED AMD WiFi Dropping

Step 1: Disable WiFi Adapter Power Management

1. Open Device Manager and expand Network Adapters.
2. Right-click the WiFi adapter entry and select Properties.
3. Go to the Power Management tab.
4. Uncheck Allow the computer to turn off this device to save power.
5. Click OK and restart the laptop.
6. Test by streaming video or browsing for 30 minutes to confirm stability.

Step 2: Reinstall ASUS WiFi Driver from ASUS Support

Go to the ASUS support website and search for your VivoBook S 15 OLED AMD model number. Download the WiFi Driver for Windows 11 from Drivers and Downloads. Uninstall the current WiFi driver from Device Manager and restart. Install the ASUS WiFi driver package and restart again. After installing, disable power management as described in Step 1.

Step 3: Connect to 5GHz Band Only

In your router settings, create a separate SSID for the 5GHz band. Connect your VivoBook S 15 OLED AMD specifically to the 5GHz SSID. This prevents automatic band roaming. Alternatively, in Device Manager, WiFi adapter Properties, Advanced tab, look for Preferred Band or Roaming Aggressiveness settings. Set Preferred Band to 5GHz and Roaming Aggressiveness to Lowest to reduce band-switching disconnections.

My VivoBook S 15 OLED dropped WiFi every 10 minutes. Disabling power management and installing the ASUS WiFi driver completely fixed it. I also set roaming aggressiveness to lowest to prevent band roaming. — Mei L., ASUS VivoBook S 15 OLED user

Frequently Asked Questions

What WiFi adapter does ASUS VivoBook S 15 OLED AMD use?

The VivoBook S 15 OLED AMD may use a MediaTek MT7922 or Intel Wi-Fi 6E AX211 adapter depending on the specific configuration and market variant. Check Device Manager under Network Adapters after the driver is installed to identify your exact WiFi adapter. Both adapters support WiFi 6 and WiFi 6E for fast connections on compatible routers.

Why does VivoBook S 15 OLED AMD WiFi drop only on battery but not on AC?

This is the WiFi power management setting described in Step 1. On battery, Windows applies more aggressive power saving and may turn off the WiFi adapter between data bursts. The fix is to disable WiFi adapter power management in Device Manager — this setting applies regardless of whether you are on battery or AC power.

Does ASUS VivoBook S 15 OLED AMD support WiFi 6E?

Yes on configurations with Intel Wi-Fi 6E AX211 or MediaTek MT7922 adapters. WiFi 6E adds the 6GHz band for less interference and higher speeds on compatible routers. To use 6GHz, your router must also support WiFi 6E. Verify your adapter model in Device Manager to confirm 6E capability on your specific unit.

Can I use a USB WiFi adapter as a temporary fix?

Yes. A USB WiFi 6 dongle works as a temporary workaround while fixing the built-in adapter. Plug it into a USB port, Windows installs the driver automatically for most USB adapters, and you get a stable alternative connection. Use the built-in adapter fix guide above as the permanent solution to avoid the performance limitations of USB WiFi.

Conclusion

ASUS VivoBook S 15 OLED AMD WiFi dropping on Windows 11 is most often caused by power management settings, an unvalidated WiFi driver, or band-roaming conflicts. Disable WiFi power management in Device Manager, reinstall the ASUS WiFi driver from ASUS support, and configure roaming aggressiveness settings. These fixes resolve WiFi drops on the VivoBook S 15 OLED AMD in most cases.