To use a new Wi-Fi password on an iPhone 7, forget the network and join it again: open Settings > Wi-Fi, tap the info (i) button next to the network, tap Forget This Network and confirm. Then tap the network in the list and enter the new password. This fixes “Incorrect password” errors after a router password change. You can’t reset the router’s own password from the iPhone; that’s done on the router.
Quick Answer
Settings > Wi-Fi > (i) > Forget This Network > tap the network > enter the new password.
Steps to Update the Password
- Open Settings > Wi-Fi.
- Tap the (i) next to the network.
- Tap Forget This Network, then Forget.
- Tap the network in the list.
- Enter the new password and tap Join.

Common Situations
| Situation | What to do |
|---|---|
| Router password changed | Forget and rejoin |
| Typed the password wrong | Forget and rejoin |
| Need to change the router password | Log in to the router’s admin page or app |
| Share the password with a guest | Bring iPhones close; newer iOS offers to share |
Troubleshooting
- Still won’t connect: Restart the iPhone and router, or reset network settings (this removes all saved Wi-Fi networks).
- Stay on Wi-Fi: See preferring Wi-Fi while roaming.
- Older iOS: See forgetting a network in iOS 9.
Frequently Asked Questions
Can I see a saved Wi-Fi password on iPhone 7?
Not on iOS 15, the latest the iPhone 7 supports. Newer iOS versions can show it after Face ID or passcode.
Will forgetting affect other networks?
No, only the one you forget.
Does it sync to my other devices?
With iCloud Keychain, forgetting may apply to your other Apple devices too.
Summary
- Open Settings > Wi-Fi.
- Tap (i) on the network.
- Forget This Network.
- Rejoin with the new password.

Kermit Matthews is a freelance writer based in Philadelphia, Pennsylvania with more than a decade of experience writing technology guides. He has a Bachelor’s and Master’s degree in Computer Science and has spent much of his professional career in IT management.
He specializes in writing content about iPhones, Android devices, Microsoft Office, and many other popular applications and devices.