Title: Resolving Random Wi-Fi Disconnections on Windows 11 with MediaTek MT7921 Wi-Fi 6 Card
If you’re experiencing intermittent Wi-Fi connectivity issues on your Windows 11 system—particularly where the connection drops unexpectedly during gaming sessions—you’re not alone. Many users with MediaTek MT7921 Wi-Fi 6 cards have reported similar problems, especially when running resource-intensive games like GTA V. This guide aims to help you diagnose the root cause and implement effective solutions to restore stable wireless connectivity.
Understanding the Issue
The core problem involves the Wi-Fi connection functioning normally during typical activities such as browsing or streaming. However, when launching certain games—most notably GTA V—the network disconnects approximately five minutes into gameplay. The Wi-Fi icon disappears from the taskbar, yet the network adapter remains visible in Device Manager without any warning signs. Restoring connectivity requires manually disabling and re-enabling the wireless adapter or restarting the computer.
Key Hardware and Software Configuration
- Wireless Card: MediaTek Wi-Fi 6 MT7921
- Operating System: Windows 11
- Graphics: Nvidia GeForce Experience and Intel integrated Graphics
- Additional Notes: No recent hardware modifications; the issue started spontaneously
Troubleshooting Attempts and Observations
- Driver Updates: Multiple driver versions installed from both Windows Device Manager and manufacturer websites, with no resolution.
- Power Management Settings: Verified that the adapter does not have power-saving options enabled, ruling out energy-saving mode conflicts.
- Advanced Adapter Settings: Adjusted parameters like Transmit Power, Roaming Aggressiveness, and Wi-Fi modes (802.11ax/ac/n), without success.
- Overlay and Utility Interference: Disabled gaming overlays and background utilities like GeForce Experience—no improvement.
- Automated Scripts: Tried scripting the auto-disable/enable process to mitigate interruptions, but the disconnections still occurred during gaming sessions.
- Alternative Applications: No issues observed with other non-gaming applications or games, indicating the problem may be tied to GPU load or specific to resource-intensive scenarios.
Additional Observations
- The Wi-Fi disconnection sometimes occurs after periods of inactivity.
- No recent hardware changes, and the network environment remains stable otherwise.
- Event Viewer logs show network disconnections but no clear errors pointing to hardware failures.
Potential Causes and Considerations
This issue appears to be a compatibility or driver-related conflict involving the MediaTek MT
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