You can't change your WiFi password from your iPhone itself

Your iPhone connects to WiFi, but it doesn't control the WiFi network. The password lives in your router — the box that broadcasts the signal — not in your phone. To change it, you need to log into your router's settings using any device with a web browser, then update the password there. After you change it, you'll need to reconnect your iPhone to the network using the new password.

This is a common point of confusion because your iPhone stores the old password and will keep trying to use it until you tell it otherwise. The steps below walk you through finding your router, logging in, changing the password, and reconnecting your phone.

Key Takeaways

  • Your router's settings are accessed through a web browser on any device — not through your iPhone's WiFi settings.
  • You'll need your router's IP address (usually printed on the back) and the admin password to log in.
  • After changing the password in your router, go back to your iPhone and "forget" the old network, then reconnect with the new password.
  • If you've forgotten your router's admin password, you can reset the router to factory settings, but this erases all your custom settings.

Find your router's login information

Look at the back or bottom of your router. You'll see a sticker with several pieces of information printed on it. Write down the IP address (usually something like 192.168.1.1 or 192.168.0.1) and the admin username and password. These are different from your WiFi network name and password — they're what you use to access the router's control panel.

If the sticker has worn off or you can't find this information, check the router's manual or the manufacturer's website. Common router brands include Netgear, TP-Link, Linksys, and Arris. If your router came from your internet provider (Comcast, Verizon, AT&T), call them and they can tell you the default admin password.

Log into your router from a web browser

Open Safari or any web browser on your iPhone, your computer, or any other device on your WiFi network. In the address bar at the top, type the IP address from your router's sticker — for example, 192.168.1.1 — and press Enter. A login page will appear.

Enter the admin username and password from the sticker. Most routers use "admin" as the username and "admin" or "password" as the password, but check your sticker to be sure. After you log in, you'll see your router's control panel. The exact layout depends on your router brand, but look for a section called "WiFi Settings," "Wireless," "Network," or something similar.

Change the WiFi password in your router settings

Once you're in the WiFi settings section, find the field labeled WiFi Password, Passphrase, Pre-Shared Key, or PSK. Clear the old password and type in your new one. Make it at least 12 characters long and mix uppercase letters, lowercase letters, numbers, and symbols — this makes it harder to guess.

After you enter the new password, look for a Save, Apply, or OK button and click it. Your router will restart, which usually takes 30 seconds to two minutes. During this time, your WiFi will drop and come back online. Don't unplug the router during this restart.

Reconnect your iPhone to the network with the new password

Once your router has restarted and your WiFi is back on, go to your iPhone's Settings app and tap WiFi. You'll see your network name in the list. Tap the information icon (a small circle with an "i" inside) next to your network name, then tap Forget This Network. This tells your iPhone to delete the old password from its memory.

Now tap your network name again from the WiFi list. Your iPhone will ask you to enter the password. Type in the new password you just created in your router settings, then tap Join. If the password is correct, your iPhone will connect and you'll see a checkmark next to the network name.

What to do if you can't remember your router's admin password

If you've lost the admin password and can't log into your router, you can reset it to factory settings. On the back of your router, there's usually a small recessed button labeled Reset. Use a paperclip or pen to press and hold this button for 10 to 15 seconds while the router is powered on. The lights will blink and the router will restart.

After the reset, the router will go back to its default admin username and password — usually "admin" and "admin" or "password." You can then log in and set up your WiFi password again from scratch. Keep in mind that resetting also erases any other custom settings you've made, like port forwarding or parental controls.

Why your iPhone keeps trying to use the old password

After you change your router's password, your iPhone might still try to connect using the old one. This happens because your phone has the old password saved in its memory. Even though you've changed the password on the router side, your iPhone doesn't know that yet. That's why the "Forget This Network" step is important — it clears out the old password so your phone can use the new one.

If you skip the "Forget" step and just try to reconnect, your iPhone will automatically use the old saved password, which won't work. You'll see an error message saying the password is incorrect. The fix is always the same: go back to WiFi settings, tap the info icon, choose "Forget This Network," and then reconnect with the new password typed in manually.

Frequently Asked Questions

Can I change my WiFi password directly from my iPhone's settings?

No. Your iPhone's WiFi settings only let you connect to networks and manage saved passwords. To change the actual network password, you must log into your router through a web browser. Your router is the device that creates and controls the WiFi network.

What if I don't know my router's IP address?

Check the sticker on the back of your router — the IP address is usually printed there. If the sticker is missing, try typing 192.168.1.1 or 192.168.0.1 into your browser, as these are the most common defaults. If neither works, call your internet provider and ask for the router's IP address.

Do I have to change my password from a computer, or can I use my iPhone?

You can use your iPhone. Open Safari, type your router's IP address into the address bar, and log in with your admin password. The process is the same on any device — phone, tablet, or computer.

My router won't let me log in even with the correct password. What should I do?

Try resetting the router by holding the recessed Reset button for 10 to 15 seconds. This returns it to factory settings so you can log in with the default admin password. After reset, you'll need to set up your WiFi password again from the beginning.

How often should I change my WiFi password?

There's no set rule, but changing it once or twice a year is reasonable for home networks. Change it immediately if you think someone has used your network without permission, or if you've shared it with someone who no longer needs access.