My Lenovo Legion 5 is less than a year old, and its Wi‑Fi suddenly stopped working. In Device Manager, the Intel AX201NGW wireless adapter has a yellow warning triangle. I tried disabling and re-enabling it, resetting the adapter, restarting the laptop, and uninstalling and reinstalling the device.
I then bought a replacement adapter and installed it. The laptop still showed a warning on the adapter, and the WAN Miniports also displayed warning icons. After another restart, the laptop powered on with the keyboard lights active, but the screen stayed black. Reinstalling the original adapter brought the display back, and Wi‑Fi worked for about five minutes before failing again.
Should I focus on reinstalling the correct Lenovo drivers, have the laptop serviced under warranty, or return the replacement and use an external USB Wi‑Fi adapter instead?
4 Answers
As a quick test or temporary workaround, try a basic USB Wi‑Fi adapter, or connect through Ethernet. If the USB adapter works normally, that helps narrow the problem to the internal adapter, its driver, or the laptop's wireless hardware.
Before replacing more hardware, download the exact Wi‑Fi and Bluetooth drivers for your Legion 5 from Lenovo's support page and perform a clean reinstall. You may also be able to manually select a working driver already stored on the laptop. After installing, shut the laptop down completely and perform a cold boot rather than only restarting Windows.
Since the laptop is still relatively new, I would stop swapping internal parts and have Lenovo inspect it under warranty. The black-screen behavior after changing the adapter suggests there may be another issue, and continuing to open the machine could complicate warranty service.
The matching warning icon on both adapters makes a driver or Windows configuration problem more likely than two failed Wi‑Fi cards. If reinstalling the Lenovo drivers does not help, reinstalling Windows could be a later troubleshooting step, but I would not do that before checking the warranty.
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