A device won't connect to Wi-Fi

Symptoms

• Device shows the Wi-Fi network but fails to connect or times out
• Device asks for a password repeatedly even when entered correctly
• Device connects then immediately disconnects
• Other devices connect to the same network without issue

Likely causes

• CommonIncorrect or outdated saved Wi-Fi password on the deviceIf the password changed recently, old devices may still try the previous one.
• CommonDevice is trying to join the wrong bandSome older devices only support 2.4GHz and can't see or join a 5GHz-only network name.
• PossibleRouter's maximum connected device limit reachedConsumer routers can only handle a limited number of simultaneous connections well.
• PossibleMAC address filtering or parental controls blocking the deviceSecurity settings on the router may be set to block unrecognized devices.
• PossibleCorrupted network profile on the deviceA device's saved settings for that network can become corrupted over time.

What to do

1. On the struggling device, forget or remove the saved Wi-Fi network, then search for it again and re-enter the password carefully.
2. Confirm you're selecting the correct network name if your router broadcasts separate 2.4GHz and 5GHz names.
3. Restart the device itself (phone, laptop, smart device) since network settings can get stuck.
4. Restart the router to clear its connected-device table.
5. Check the router's app or admin page for a device or MAC filtering list and make sure the device isn't blocked.
6. Move the device closer to the router temporarily to rule out a weak signal causing connection failures.
7. If the device still won't connect, check for a firmware or OS update for that specific device, since outdated Wi-Fi drivers can cause this.

Tools and parts

• Access to router's admin page or app

When to call a pro

If a specific device consistently fails to connect to any Wi-Fi network, its Wi-Fi hardware may be failing and worth having checked by a repair shop.

Safety