For about a month, the Wi-Fi option on my three-year-old laptop has randomly disappeared while I'm using it. Bluetooth remains available, but the wireless adapter vanishes completely. Restarting the computer restores Wi-Fi temporarily, although the problem seems to return more quickly after repeated restarts.
I've tried uninstalling and reinstalling the adapter, updating its driver, resetting the network, running Windows diagnostics, rolling back Windows, and reinstalling Windows entirely. A clean reinstall fixed the issue for roughly two weeks, but it eventually returned. I also opened the laptop and reseated the Wi-Fi card and antenna cables, without any improvement. The laptop firmware is already up to date.
Could this still be a failing internal Wi-Fi card, even though it sometimes works for minutes or weeks before disappearing? Would using a USB Wi-Fi adapter be a good way to test or work around the problem?
2 Answers
Another option is replacing the internal M.2 Wi-Fi card. Intermittent hardware failures don’t always mean the card will stop working completely; heat, power-state changes, or a marginal connection can make it disappear after unpredictable periods. Swapping the card or using a USB adapter changes the variables and should help identify the cause.
Since drivers, Windows resets, and firmware updates haven’t solved it, this may be a hardware problem with the internal wireless card or its connection. A USB Wi-Fi adapter is a practical test and workaround because it bypasses the laptop’s built-in card. If the USB adapter stays reliable, that points strongly toward the internal card.
I already updated the firmware, so I’m going to try a USB adapter and see whether it remains stable.
That makes sense. I was hesitant to blame the card because it can work anywhere from ten minutes to two weeks, but I’ll consider replacing it if the USB adapter confirms the issue.