Why does Wi-Fi say the password is wrong when I think it is correct?

Rule out the simple mismatch

Homes often have similarly named networks, old network names, guest networks, or both 2.4 GHz and 5 GHz names. Select the exact network you mean to join and type the password again rather than relying on autofill. Check capital letters, punctuation, spaces, and whether the device keyboard is entering the characters you expect.

Refresh the saved connection

1. On the affected device, forget or remove the saved Wi-Fi network. 2. Restart the device if it has been trying repeatedly. 3. Select the correct network name again. 4. Enter the current password manually. 5. Test another device only to learn whether the problem is one device or the whole network.

What the result tells you

If other devices can join with the same password, focus on the affected device’s saved settings or software. If no device can join, verify the password in the router or mesh management app before changing it. If the network is not visible at all, that is a different problem from a rejected password.

Change passwords deliberately

Changing the Wi-Fi password disconnects every device that uses it, including smart-home equipment that may be difficult to reconnect. Do it only after confirming the current password is not working across devices, and record the new password in a secure place.

Get help when

Contact the device maker if one device repeatedly rejects a known-good password after forgetting the network. Contact the router maker if the router app does not show a clear current network name or password setting.

Sources

These official sources can help you check the next step for your equipment.

1. If you can’t connect to Wi‑Fi on your iPhone or iPad — Apple Support
2. Fix Wi-Fi connection issues in Windows — Microsoft Support
3. Device can’t connect to my Nest Wifi or Google Wifi network — Google Home and Nest Help

Before making disruptive changes

• Changing the Wi-Fi password disconnects every device that uses it.