How to Fix Wi-Fi That Keeps Asking for the Password

Step 1: Forget the network and rejoin

This is the single most effective fix and the right first move. On the device, forget or remove the saved Wi-Fi network, then reconnect and type the password fresh. Over time a device's stored network profile can corrupt, so it keeps sending stale or garbled credentials no matter what you enter — and the router keeps rejecting them. Removing the profile forces the device to build a clean one. On iPhone: Settings > Wi-Fi > (i) > Forget This Network. On Android: long-press the network > Forget. On Windows: Settings > Network > Wi-Fi > Manage known networks > Forget. On macOS: System Settings > Wi-Fi > Details > Forget.

Step 2: Verify the exact password

Wi-Fi passwords are case-sensitive, and a single wrong character fails silently. Read the password directly from the router's label or admin panel rather than from memory, and watch for the classic look-alikes: zero versus the letter O, the digit 1 versus lowercase l versus uppercase I, and an accidental trailing space. Use the "show password" eye icon while typing so you can confirm every character before submitting.

Step 3: Make sure you are joining the right network

If your router broadcasts separate 2.4 GHz and 5 GHz networks with similar names — "HomeNet" and "HomeNet_5G" — it is easy to select the wrong one and assume the password is failing. Confirm exactly which SSID you are tapping. A guest network with a different password is another common mix-up. If the right password genuinely fails on the right network, move on; this step only rules out selecting the wrong target.

Step 4: Restart the device and the router

Reboot the device first — that alone clears a stuck authentication handshake on many phones and laptops. If the loop continues, power-cycle the router: unplug it for 30 seconds and let it fully restart. Routers that have been running for weeks can land in a state where the radio refuses otherwise-valid logins until the connection table is cleared by a restart.

Step 5: Check router-side limits

If one device still cannot get on, the block may be on the router, not the password. Log into the admin panel and check three things. MAC address filtering: if an allow-list is on and this device's MAC address is not on it, the device is rejected no matter what password you type. A full DHCP pool: if every address is leased out, there is none to assign, and some devices report that as an authentication failure — see checking for an IP conflict for related addressing issues. A recent password change: if someone updated the Wi-Fi password, the device is offering the old one from its saved profile, which Step 1 resolves.

Step 6: Reset network settings as a last resort

When a single device keeps failing while everything else connects, and forgetting the network has not helped, reset that device's network settings entirely. This rebuilds the whole Wi-Fi stack and wipes every saved profile, clearing corruption you cannot see. On iOS: Settings > General > Transfer or Reset > Reset > Reset Network Settings. On Android: Settings > System > Reset > Reset Wi-Fi, mobile & Bluetooth. On Windows: Settings > Network > Advanced network settings > Network reset. You will need to re-enter Wi-Fi passwords afterward, so have them handy.

Frequently Asked Questions

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

Usually the saved network profile on the device is corrupted, so the device sends stale or garbled credentials no matter what you type. Forgetting the network and rejoining fresh fixes this in most cases. A stuck authentication state on the router, MAC filtering, or a full DHCP pool can also produce a "wrong password" message even when the password is right.

Why does only one device keep asking for the Wi-Fi password?

If every other device connects fine, the problem is local to that one device — a corrupted saved profile or a confused network stack. Forget the network and rejoin, and if that fails, reset that device's network settings. A device-specific failure points away from the router and toward the device's stored configuration.

Can a router problem cause repeated password prompts?

Yes. A router with MAC address filtering will reject a device regardless of the correct password. A full DHCP pool leaves no address to hand out, which some devices report as an authentication failure. A stuck radio after long uptime can also refuse valid logins until the router is rebooted.