You install the Windows 11 24H2 feature update on your Acer laptop, it restarts a few times, and when the desktop finally appears the Wi-Fi icon is gone — replaced by a globe icon, or the adapter has vanished from Device Manager entirely. No networks, no toggle, sometimes not even a Wi-Fi section in Settings. The laptop is fine; its wireless driver did not survive the update.

This is one of the most reported 24H2 issues across all laptop brands, and Acer machines with Intel, MediaTek, or Qualcomm wireless cards are squarely in the affected group. The pattern is consistent enough that the fix order is well established: check what the update did to the driver, roll it back or replace it, and reset the network stack if needed. Work through the fixes below and Wi-Fi comes back in the large majority of cases.

The 24H2 Wi-Fi problem has a known shape. Microsoft documented post-24H2 wireless issues affecting certain Intel and Qualcomm adapters, where the migrated driver either fails to start or starts without radio functionality. The failure often pairs with a specific Device Manager code — Code 10 (device cannot start) or Code 43 (device reported a problem). Those codes are your confirmation that the hardware is fine and the driver is not. Write down the code you see; it tells you whether to roll back, reinstall, or replace the driver.

Why this happens

  • The 24H2 update replaced your Wi-Fi driver with a generic one. Feature updates reinstall drivers, and the generic version may lack support for your specific wireless card.
  • The old driver was left half-migrated. The migration copied the driver incompletely, leaving it in a state where it cannot start.
  • Acer-specific wireless utilities conflict with the new stack. Older Acer wireless management software fights the 24H2 network stack for control of the adapter.
  • Power management settings were reset. 24H2 can re-enable aggressive power saving that switches the Wi-Fi card off.
  • The network stack was corrupted during migration. Winsock or TCP/IP catalog damage from the update breaks connectivity even with a working driver.
  • A pending driver update is stuck halfway. Windows Update is holding a half-installed wireless driver that blocks the adapter.
  • BIOS-level wireless was toggled. Rare, but some updates reset BIOS settings including the wireless radio switch.

How to fix it

Work through these in order — diagnose first, then act.

Fix 1: Check Device Manager and roll back the driver

Start by seeing exactly what state the adapter is in.

  1. Open Device Manager and expand Network adapters.
  2. If your Wi-Fi adapter shows a warning icon, open Properties > Driver.
  3. Click Roll Back Driver if available — this restores the pre-24H2 driver that worked.
  4. Restart and check for Wi-Fi. If rollback is grayed out, continue.

Fix 2: Reinstall the wireless driver cleanly

A corrupted driver needs removal, not repair.

  1. In Device Manager, right-click the Wi-Fi adapter and choose Uninstall device.
  2. Check Attempt to remove the driver for this device and confirm.
  3. Restart — Windows will detect the hardware and install a driver.
  4. If Windows installs the same broken driver, move to the next fix before it finishes.

Fix 3: Install the driver from Acer or Intel directly

Manufacturer drivers are built for your exact card and survive 24H2 properly.

  1. Find your exact model on Acer’s support site and download the latest wireless driver.
  2. For Intel wireless cards, the Intel Driver & Support Assistant finds the correct Wi-Fi driver automatically.
  3. Install with the laptop on AC power and restart.
  4. Confirm the adapter shows no warning in Device Manager and networks appear.

Fix 4: Reset the network stack

When the driver is fine but connections still fail, the stack itself needs rebuilding.

  1. In an elevated Command Prompt, run netsh winsock reset and netsh int ip reset.
  2. Run ipconfig /release, ipconfig /renew, and ipconfig /flushdns.
  3. Restart the laptop.
  4. Reconnect to your Wi-Fi network and test. For the broader network-reset playbook see metered connection blocking updates .

Fix 5: Disable Wi-Fi power saving

24H2 loves to re-enable power management that switches the adapter off.

  1. In Device Manager, open the Wi-Fi adapter’s Properties > Power Management.
  2. Uncheck Allow the computer to turn off this device to save power.
  3. In Settings > System > Power & battery, set the power mode to Best performance while testing.
  4. Also check any physical wireless switch or Fn key combo on the Acer — some models have one.

Fix 6: Block Windows Update from replacing the driver again

Fixing it once is not enough if Windows Update reinstalls the broken driver overnight.

  1. Open System Properties > Hardware > Device Installation Settings and choose No.
  2. In Settings > Windows Update > Advanced options, turn off Receive updates for other Microsoft products temporarily if driver updates ride along.
  3. Keep the working driver installer file you downloaded in Fix 3.
  4. If a driver update already broke things once, the driver updates failing guide explains how to keep bad ones out.

Fix 7: Use the 24H2 rollback or a USB tether as fallback

When nothing restores the adapter, buy time with connectivity while you plan the next step.

  1. Tether via USB to your phone to get internet for downloading drivers.
  2. If within ten days of the update, Settings > System > Recovery > Go back restores the pre-24H2 system with working Wi-Fi.
  3. After rolling back, pause updates and install the Acer wireless driver manually before retrying 24H2.
  4. Check Microsoft support for any newly published 24H2 wireless fixes before your next attempt.

Fix 8: Test with a USB Wi-Fi adapter

A five-minute hardware-versus-driver verdict.

  1. Borrow or buy an inexpensive USB Wi-Fi adapter — any major brand works.
  2. Plug it in and let Windows install its driver.
  3. If the USB adapter connects immediately, your built-in card’s driver is definitively the problem.
  4. Return to the driver fixes with confidence; if even the USB adapter fails, the network stack needs the reset in Fix 4.

Closing

Wi-Fi dying after 24H2 is a driver migration failure, not a hardware death — the timing alone proves it. Roll back or cleanly replace the wireless driver, reset the network stack, and stop Windows Update from reinstalling the broken version. Do those three things and your Acer’s Wi-Fi survives not just this 24H2 install but the next feature update too.

Frequently asked questions

Why did Wi-Fi stop working after the 24H2 update?
The 24H2 feature update migrates hardware drivers, and wireless adapters are the most common casualty. The update may install a generic driver that does not support your Acer’s Wi-Fi card, or leave the old driver in a broken half-migrated state.
Is my Wi-Fi card dead, or is it the update?
Almost certainly the update. If Wi-Fi worked the day before 24H2 installed and died immediately after, that timing is conclusive. Hardware failures do not politely wait for feature updates. True hardware failures are abrupt and permanent, not synchronized with update installations.
Can I roll back the 24H2 update to get Wi-Fi back?
Yes, within ten days of installation via Settings > System > Recovery > Go back. But fixing the driver is faster and keeps you on the supported build, so try the driver fixes first. The rollback option disappears ten days after installation, so decide within that window.
Why does Device Manager show the Wi-Fi adapter with a warning?
That warning means the driver failed to start — code 10, 31, or 43 are typical after 24H2. It confirms a driver problem rather than a hardware problem, which is good news because drivers are fixable. Right-click the adapter, open Properties, and read the Device status box — the code there confirms the diagnosis.