Can't Get Online? A Corrupted Network Driver Might Be Why
June 1, 2026
When one computer drops offline but the router and every other device are fine, a corrupted network-card driver is a common culprit — and reinstalling it usually brings the internet back.
If a single computer suddenly can't get online — no Wi-Fi, no Ethernet — while your phone, tablet, and other computers connect fine, the problem usually isn't your internet. It's that machine, and a frequent cause is a corrupted driver for the network card (the adapter that actually does the connecting).
How a network driver goes bad
A bad Windows update, a driver update that didn't install cleanly, malware, or general system corruption can all break the network adapter's driver. When that happens the adapter might show a warning in Device Manager, disappear from the list entirely, or simply refuse to connect no matter how many times you retype the Wi-Fi password.
The catch-22 — and the fix
Here's the frustrating part: the fix is to reinstall the network driver, but you normally download drivers from the internet — which is exactly what you can't reach. The way around it is to grab the right driver on another device or phone and move it over by USB stick, or temporarily get online another way (a phone's USB tether or a USB Wi-Fi/Ethernet adapter).
From there, the cure is usually to uninstall the corrupted network adapter in Device Manager and reinstall a fresh, correct driver — from the PC or motherboard maker for your exact model. Windows' built-in "Network reset" sometimes helps too, but for a genuinely corrupted driver, a clean reinstall of the proper one is what restores the connection.
Where we come in
This is a textbook onsite call: you can't download the fix because you can't get online, and finding the exact right driver for your hardware is fiddly. We come to you with the drivers on hand, identify the right one for your machine, do the clean reinstall, and confirm you're back online before we leave — onsite or, once you're connected, remotely.
Keep reading
Free calculators
Service areas we cover
We don't sell hardware or warranties — call and we'll tell you what's worth buying and upgrading.
Call (626) 655-0020