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Likely fix

Fix: WiFi not working on one device only

If every other device works, the router is probably fine. Focus on the one device's saved network, VPN, DNS, software update, or WiFi adapter.

Quick answer

Do not reset the router if every other device works. Restart the one device, forget and reconnect to WiFi, then turn off VPN, private DNS, or security apps temporarily.

Important warning

Do not reset the router if every other device is working. The problem is probably on the single device.

Try this

  1. 1 Restart the device.
  2. 2 Forget the WiFi network and reconnect.
  3. 3 Turn off VPN, private DNS, or security apps temporarily.
  4. 4 Check whether the device has a manual IP address or custom DNS set.
  5. 5 Try the device on another WiFi network if available.
  6. 6 Update the operating system or WiFi driver.
  7. 7 Reset network settings if nothing else works.

Common causes

Bad saved WiFi profile.

VPN or private DNS blocking traffic.

Manual IP or DNS settings are wrong.

Outdated WiFi driver or operating system.

Device network settings are corrupted.

What to check next

  • Check whether other devices work on the same WiFi.
  • Check whether the failing device works on mobile hotspot or another network.
  • Check whether VPN, private DNS, proxy, or security software is enabled.
  • Check whether the device has a manual IP address.
  • Check whether the problem began after an update.

FAQ

Why is WiFi not working on only one device?

The router is probably fine if other devices work. The affected device may have a bad saved network, VPN, DNS, proxy, outdated driver, or broken network settings.

Should I reset my router if only one device has no internet?

Usually no. Start with the affected device first because the router is probably working.

What does reset network settings do?

It clears saved WiFi networks, Bluetooth pairings, VPN settings, and other network configuration so the device can reconnect fresh.

Related fixes

Fix: WiFi connected but no internet

This usually means your device is connected to the router, but the router cannot reach the internet, DNS is failing, or only this device has a bad network setting.

Fix: WiFi is slow on one device only

Slow WiFi on one device is usually caused by weak signal, background downloads, VPN, old drivers, low-power mode, or that device choosing a crowded WiFi band.

Fix: One device cannot connect to WiFi

When only one device cannot connect, the usual causes are a saved bad password, incompatible security mode, blocked device, parental controls, or broken network settings.

Fix: WiFi keeps dropping

WiFi usually drops because of weak signal, interference, router overload, overheating, outdated device software, or a buggy WiFi adapter driver.

Fix: WiFi says wrong password

Wrong password errors can happen even with the correct password if the saved network profile is corrupted, the router security mode changed, or the device does not support the router's WiFi settings.

Fix: WiFi network not showing up

A missing WiFi network usually means the router is off, hidden, too far away, using a band your device cannot see, or the device's WiFi is disabled or stuck.