I recently received a custom-built PC. Windows installed and runs normally, and I initially used Ethernet to finish setup and install updates. However, Wi‑Fi isn't available anywhere in Network settings. In Device Manager, Bluetooth appears under Network adapters, but there's no wireless adapter listed. A device called "Network controller" appears under Other devices with a yellow warning icon.
I installed the latest drivers for the ASUS PRIME A520M-A II CSM motherboard and ran all available Windows updates, but nothing changed. The wireless card was listed by the builder as an AWD-IT 5400Mbps Wi‑Fi 6 Dual Band PCIe card with Bluetooth 5.2. The hardware ID for the unidentified network controller is PCIVEN_14C3&DEV_7922&SUBSYS_380411AD&REV_00, which seems to identify it as a MediaTek device. How can I get the Wi‑Fi adapter working?
3 Answers
You can download the driver on another computer, copy it to a USB drive, and install it on the new PC. A phone can work too if you connect it by USB and enable file transfer. Make sure you download the wireless-card driver, not just the ASUS motherboard drivers. After installation, restart the PC and check Device Manager again.
The motherboard itself doesn’t include Wi‑Fi, so its driver package won’t make the separate PCIe card appear. The builder’s listing is probably describing the retailer’s card rather than giving its actual manufacturer. The hardware ID points to a MediaTek adapter, so you need the correct MediaTek driver for that specific card. Check the card inside the case for a brand and model, or ask the builder to provide the exact driver. Since Bluetooth is already working, the card is likely installed and just missing its Wi‑Fi driver.
It’s also worth checking the BIOS to make sure onboard and PCIe devices haven’t been disabled, although this is less likely if Bluetooth from the card is detected. Press Delete during startup to enter the BIOS and look through the onboard-device or PCIe settings. Since the PC is newly built, the simplest solution may be for the seller to confirm the card model and supply the correct driver or fix the installation.
That makes sense. The hardware ID also showed MediaTek when I looked it up, so I’ll try to identify the exact card and contact the builder if I can’t find the matching driver.