Go to Device Manager → Network Adapters → Qualcomm Atheros QCA9377 → Properties → Power Management → Uncheck "Allow the computer to turn off this device to save power." This helped but didn’t fully stop Windows from re-breaking it after major updates.
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Right-click the Start button and select Device Manager . Expand Network adapters to see your wireless card's name, which is typically from manufacturers like Qualcomm Atheros , Intel , or Realtek . acer aspire e15 wifi driver
This story became a rite of passage. If you owned an Aspire E15, you either learned to wrestle with Device Manager, or you learned to swap a WiFi card. And because Acer kept using that same problematic chip across multiple generations, the "Acer WiFi driver" search query remained one of the most common tech support issues for nearly half a decade. Go to Device Manager → Network Adapters →