I have a new Acer Swift AI 14 running Windows 11, and its Wi‑Fi connection frequently drops. After the failure, the laptop cannot detect any wireless networks until I restart it or disable and re-enable the MediaTek MT7925 adapter. Windows, optional updates, BIOS, and the latest driver available from Acer are installed, and I have already disabled Wi‑Fi power saving. Reinstalling the driver helped temporarily, but the random disconnects continued and the problem eventually returned. Event Viewer shows repeated MTK WECX "Scan Timeout Info" events and WLAN AutoConfig errors saying the WLAN Extensibility Module stopped mtkihvx.dll. What troubleshooting steps should I try next, and how can I safely find a newer compatible driver?
1 Answer
Check the adapter’s power-management settings and make sure Windows is not allowed to turn off the Wi‑Fi card to save power. It is also worth checking the laptop’s overall power profile, since aggressive efficiency settings can sometimes affect wireless stability.
I already disabled the option that lets Windows turn off the Wi‑Fi adapter. The laptop is using its normal power-efficiency profile, with Energy Saver set to 30%, so the disconnects are still happening.