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Fix Wi‑Fi that will not accept password

We'll confirm the password, clear cached credentials, power-cycle the router, and get you connected—or tell you when to escalate.

Troubleshooting · Wi‑Fi & networking
5–15 min
What you'll need
  • Access to the router (to check label or power-cycle)
  • The correct Wi‑Fi password (from router label, admin page, or ISP)
  • The device that will not connect
Step 1 of 6

Quick triage — pick your path

Quick triage — pick your path

Choose the option that matches what you see. You can jump straight to that section.

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Steps

Goal: Confirm the password, clear cached credentials, and get the device connected.

  • Check the router label for the default Wi‑Fi password, or log into the router admin (192.168.1.1 or 192.168.0.1) to view it. If your ISP set up the router, contact them. Confirm you have the exact password—typos, caps lock, and extra spaces cause rejections.
  • Good: You have the correct password. Proceed to Forget the network.
  • Bad: Unsure—get the password from the router or ISP before retrying.

Forget the network

Goal: Remove cached credentials so the device can reconnect with a fresh password.

  • On the device, open Wi‑Fi settings and forget or remove the network. On Windows: Settings > Network & Internet > Wi‑Fi > Manage known networks > select the network > Forget. On Mac: System Preferences > Network > Wi‑Fi > Advanced > remove the network. On phone: Wi‑Fi settings > tap the network > Forget.
  • Reconnect and enter the password. Confirm caps lock is off and there are no extra spaces.
  • Good: The device connects. Proceed to Verification.
  • Bad: Still rejects—proceed to Power-cycle the router.

Power-cycle the router

Goal: Clear stuck authentication state on the router.

  • Unplug the router from power, wait 60 seconds, then plug it back in. Wait for the Wi‑Fi light to stabilize.
  • Forget the network on the device again, reconnect, and enter the password.
  • Good: The device connects. Proceed to Verification.
  • Bad: Still rejects—restart the device and retry. If no device can connect, see Reset router.

Reset router

Goal: Restore factory defaults when the router is in a bad state and no device can connect.

  • Hold the router reset button for 10–15 seconds until the lights blink. The router will reboot with factory defaults.
  • Reconfigure the Wi‑Fi name and password via the router admin. Reconnect all devices with the new password.
  • Good: Devices connect. Proceed to Verification.
  • Bad: Problem continues—see Escalate.

Escalate

Goal: Hand off with evidence when local fixes do not work.

  • Capture: router model and firmware version, device model and OS, exact error message, whether any other device can connect with the same password, and what you already tried. Contact your ISP or router manufacturer with that information.

Verification

  • The device connects to Wi‑Fi and stays connected.
  • You can open a website or run a speed test at fast.com to confirm internet access.
  • No “incorrect password” or authentication error when connecting.

Escalation ladder

Work from the device outward. Stop when the problem is fixed.

  1. Confirm password Check router label, admin page, or ISP for the exact password.
  2. Forget network and reconnect Remove the network from the device and enter the password fresh.
  3. Power-cycle and restart Power-cycle the router; restart the device; retry.
  4. Reset router Factory reset if no device can connect; reconfigure Wi‑Fi.
  5. Escalate Capture router model, device model, OS, and error message; contact ISP or manufacturer.

What to capture if you need help

Before calling support or posting for help, have these ready. It speeds everything up.

  • Router model and firmware version
  • Device model and OS version
  • Exact error message when connection fails
  • Whether any other device can connect with the same password
  • Steps already tried

Have you confirmed the password is correct?

Check the router label, admin page (192.168.1.1 or 192.168.0.1), or your ISP. Typos and caps lock cause rejections.

Confirm the password from the router sticker or admin page. Check for typos, caps lock, and extra spaces. Good: you have the exact password. Bad: unsure—get it from the router or ISP first.

Yes No

You can change your answer later.

Get the correct password

Check the router label for the default Wi‑Fi password. Or log into the router admin at 192.168.1.1 or 192.168.0.1. If your ISP set up the router, contact them. Confirm you have the exact password before retrying.

Done

Did you forget the network and reconnect?

The device may have cached an old or wrong password. Forget the network and enter the password fresh.

On the device, open Wi‑Fi settings and forget or remove the network. Reconnect and enter the password. Good: connected. Bad: still rejects—power-cycle the router.

Yes No

You can change your answer later.

Connected

The device is connected to Wi‑Fi. If you changed the router password, other devices may need to forget the network and reconnect too.

Done

Did power-cycling the router help?

Unplug the router for 60 seconds, then plug back in. Clears stuck authentication state.

Unplug the router from power, wait 60 seconds, plug back in. Wait for the Wi‑Fi light to stabilize. Forget the network on the device again, reconnect, enter the password. Good: connected. Bad: still rejects—restart the device and retry, or reset the router if no device can connect.

Yes No

You can change your answer later.

Reset router or escalate

If no device can connect with the correct password, reset the router to factory defaults (hold reset button 10–15 seconds). Reconfigure Wi‑Fi name and password. If the problem continues, capture router model, device model, OS, and error message—contact your ISP or router manufacturer.

Done

Reviewed by Blackbox Atlas

Frequently asked questions

Why does my Wi‑Fi reject the correct password?
Often the device has cached an old or wrong password. Forget the network on the device and reconnect. Power-cycle the router to clear stuck state. Confirm the password from the router label, admin page, or your ISP.
How do I find my Wi‑Fi password?
Check the sticker on the router, log into the router admin (often 192.168.1.1 or 192.168.0.1), or contact your ISP. If you changed it, use the password you set.
What if I forgot the password I changed?
Log into the router admin and set a new Wi‑Fi password. You may need to reset the router to factory defaults if you cannot log in—that will erase all settings.

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