Your PC can't connect to WiFi because of a driver problem, a disabled network adapter, incorrect password entry, router distance, or interference — and most of these you can fix yourself in minutes.
When your computer won't connect to your WiFi network, the problem is usually one of five things: your network adapter driver is outdated or corrupted, Windows has disabled your WiFi adapter, you're entering the wrong password, you're too far from the router, or something is blocking the signal. Start by checking the simplest causes first — whether you can see your network name in the list of available networks, whether you've typed the password correctly, and whether other devices can connect. If those work, move to the adapter and driver checks.
The fastest way to narrow down the problem is to ask: can you see your WiFi network's name when you look at available networks on your PC? If no, your adapter isn't detecting the network. If yes, but you can't connect, the problem is usually the password or the adapter itself.
Key Takeaways
- Check whether other devices can connect to your WiFi first — if they can't, the problem is your router, not your PC.
- Look in Device Manager to see whether your network adapter is disabled or has a yellow warning triangle, which means the driver needs attention.
- Restart your router by unplugging it for 30 seconds, then restart your PC — this fixes most connection problems without any other work.
- Update your network adapter driver through Device Manager or your PC manufacturer's support website, because outdated drivers block WiFi connections regularly.
- If your PC is far from the router or in a different room with thick walls, move closer to test whether distance or interference is the cause.
Check whether the problem is your router, not your PC
Before you spend time fixing your PC, confirm that your WiFi network itself is working. Pick up your phone, tablet, or another computer and try to connect to the same WiFi network. If that device connects without trouble, the problem is specific to your PC. If no devices can connect, your router has stopped working — unplug it for 30 seconds, plug it back in, and wait two minutes for it to restart.
If other devices connect but yours doesn't, write down the exact network name (called the SSID) and the password from the router's sticker or your account. You'll need both to troubleshoot.
Look for a disabled network adapter in Device Manager
Windows sometimes disables your WiFi adapter without warning, especially after a Windows update or if you accidentally hit a keyboard shortcut. Open Device Manager by right-clicking the Start button and selecting "Device Manager" from the menu. Look for "Network adapters" in the list and click the arrow next to it to expand the section.
Find your WiFi adapter — it usually has "Wireless" or "802.11" in the name. If there's a red X or a yellow exclamation mark on it, right-click it and select "Enable device." Wait 10 seconds, then try connecting to WiFi again. If the adapter has no warning symbol but you still can't connect, right-click it and select "Update driver" to check for a newer version.
Restart your router and PC in the right order
A restart fixes most WiFi problems because it clears temporary errors in both devices. Unplug your router's power cable, wait 30 seconds (count it out — this matters), then plug it back in. Wait two full minutes for the router to restart completely; you'll see the lights stop blinking when it's ready.
While the router restarts, restart your PC. Once both are back on, try connecting to WiFi again. If this works, you're done. If not, move to the driver update step.
Update your network adapter driver
An outdated or corrupted driver is the most common reason a PC won't connect to WiFi. Open Device Manager again, find your network adapter under "Network adapters," right-click it, and select "Update driver." Choose "Search automatically for updated driver software" and let Windows search for the latest version. If it finds one, install it and restart your PC.
If Windows doesn't find an update, go to your PC manufacturer's support website — Dell, HP, Lenovo, Asus, or whoever made your computer. Search for your exact model number (you can find it in Device Manager or on a sticker on your PC) and read the latest network driver from their support page. Run the installer and restart your PC when it finishes.
If you're not sure which adapter you have, right-click it in Device Manager, select "Properties," and look at the "Device name" field at the top. Search that exact name on your manufacturer's website.
Check your password and network name
When you try to connect, Windows shows a list of available networks. Make sure you're selecting the correct network name — if you have a 2.4 GHz and 5 GHz network from the same router, they may have slightly different names, and some devices connect better to one than the other. Try both if you see them.
When you enter the password, type it slowly and carefully. Passwords are case-sensitive, meaning capital letters matter. If you're not sure whether you typed it right, check the "Show password" box so you can see what you're typing. The password is usually on a sticker on the back or bottom of your router, or in your WiFi provider's account online.
Move closer to the router to rule out distance and interference
If your PC is in a different room from the router, especially with walls or metal objects between them, the signal may be too weak to connect. Move your PC closer to the router — even just 10 feet away in the same room — and try connecting again. If it works, you know distance or interference is the problem. You can then move the router to a more central location, move your PC closer, or consider a WiFi extender for distant rooms.
Microwaves, cordless phones, and baby monitors can also interfere with WiFi on the 2.4 GHz band. If your router has both 2.4 GHz and 5 GHz networks, try connecting to the 5 GHz one instead — it's faster but doesn't go as far, so it works best closer to the router.
Forget the network and reconnect from scratch
Sometimes Windows stores incorrect connection settings for a network, and reconnecting clears them. Open your WiFi settings by clicking the WiFi icon in the bottom right corner of your screen. Find your network in the list, click it, and select "Forget." Wait 10 seconds, then look for the network again in the list, click it, and enter the password as if you're connecting for the first time.
If you still can't see your network in the list, your adapter may not be detecting it at all. Go back to Device Manager, right-click your network adapter, and select "Disable device." Wait 10 seconds, then right-click it again and select "Enable device." This resets the adapter's connection to Windows.
Frequently Asked Questions
Why does my PC see the WiFi network but won't connect?
You're entering the wrong password, or your network adapter driver is outdated. Try typing the password again slowly with "Show password" checked. If that doesn't work, update your driver through Device Manager or your PC manufacturer's website.
How do I know if my network adapter is broken?
If Device Manager shows your adapter with a red X or yellow warning mark, the driver needs attention — update it first. If the adapter is disabled, enable it. If you've updated the driver and restarted your PC and still can't connect, and other devices connect fine, the adapter hardware may be failing — contact your PC manufacturer's support.
Can WiFi interference from other devices really stop my PC from connecting?
Yes, but usually only if you're already far from the router. Microwaves and cordless phones use the same 2.4 GHz band as most WiFi. Move closer to the router or try connecting to a 5 GHz network if your router has one — it's less crowded but doesn't travel as far.
What if I've tried everything and my PC still won't connect?
Restart your router and PC one more time in order: unplug the router for 30 seconds, plug it back in, wait two minutes, then restart your PC. If that doesn't work, check your PC manufacturer's support website for a network driver update specific to your exact model number.
Does a factory reset fix WiFi problems?
A factory reset should be your last resort because it erases everything on your PC. Try updating your driver, restarting both devices, and forgetting and reconnecting to the network first. If none of those work, contact your PC manufacturer's support before resetting.