The password you're changing, and who can change it
Your router has two separate secrets. The Wi-Fi password (also called the network security key, passphrase or pre-shared key) lets devices join. The admin password opens the router's settings, and you need it to change the Wi-Fi password.
On a gateway from your ISP, the account holder's login for the provider's app works as well. Without one of those, there's no legitimate way to change the key on that network, so ask whoever runs it.
See the current key before you change it
A device that's already connected can show you the key. Keep it handy in case you need to back out of the change.
| Device | Where the saved key is shown |
|---|---|
| iPhone or iPad (iOS 16 and later) | Settings > Wi-Fi > Info button next to the network > tap the Password field |
| Windows 11 | Settings > Network & internet > your network's Properties > View Wi-Fi security key |
| Pixel phone | Swipe down for Quick Settings > Internet > Share Wi-Fi, which shows a QR code |
| Mac | The Passwords app > Wi-Fi in the sidebar, or Keychain Access on older macOS versions |
Next, open the router's list of connected devices and note what's on it. Smart plugs, cameras and doorbells are the ones people forget. Do the change while you're at home, with those devices within reach.
Changing the Wi-Fi password in the router's web page
- Connect to the router, then open its address in a browser. If
192.168.1.1doesn't load, look up your router's address first. - Sign in with the admin username and password. The factory logins by brand help if nobody ever changed it.
- Open the wireless section. Depending on the brand, it's called Wireless, Wi-Fi Settings or Wireless Security.
- Find the key field. It may be labeled Password, Passphrase, Pre-Shared Key or Network Key.
- Type the new key, check the security mode, and press Save or Apply.
If your router shows separate 2.4 GHz and 5 GHz networks, Smart Connect (band steering) is off and each band keeps its own key. Change every one of them, including 6 GHz on newer routers. Otherwise some devices will carry on using the old key on the band you missed.
Changing the Wi-Fi password in a phone app
Mesh systems and many ISP gateways are easier to manage from an app, and some have no web page at all. The route is nearly always the same:
- Open the maker's or provider's app and sign in.
- Go to the Wi-Fi or network section.
- Pick your network and choose to edit it or its password.
- Enter the new password and save.
Maker apps include Nighthawk for Netgear, Deco and Tether for TP-Link, the eero app and the Starlink app. In Google Home, Google's steps for Google Wifi and Nest Wifi are Home > Wifi > Network settings > your existing password, then enter the new one and tap Save. Google allows 8 to 63 characters with no spaces.
Provider apps for Xfinity, Spectrum, AT&T, Verizon and T-Mobile
| Provider | App | Where in the app | Web option |
|---|---|---|---|
| Xfinity | Xfinity app | WiFi tab > WiFi details > Edit WiFi settings > Save | Admin Tool at 10.0.0.1 (not if you use WiFi Boost Pods) |
| Spectrum | My Spectrum | Services tab > your network under Your Spectrum Network > Save | Spectrum.net > Services > Internet |
| AT&T | Smart Home Manager | My Wi-Fi card > Change > Save | 192.168.1.254 with the Device Access Code from the label |
| Verizon | My Verizon | Services > Internet > My Network > Manage > Save Changes | 192.168.1.1 with the label password |
| T-Mobile Home Internet | T-Life | My Wi-Fi > your network name > Wi-Fi network password (key) > Save | App first on newer gateways |
| Cox | Cox app | Your Wi-Fi network > edit name or password | cox.com/mywifi |
Each provider documents its own steps: Xfinity, Spectrum, AT&T and Verizon. App menus change often, so follow the provider's current wording if it differs.
On PLDT, Converge, Airtel and other fiber services, the key usually sits under WLAN or Wireless > Security on the fiber box's web page. Some providers also offer their own app for it.
Choosing the security mode
| Mode | Who can join | Best for |
|---|---|---|
| WPA2-Personal (AES) | Nearly every Wi-Fi device still in use | Only when a device you need can't join the other two |
| WPA2/WPA3 transition | WPA2 and WPA3 devices, with one password | Most homes with a mix of old and new gear |
| WPA3-Personal only | WPA3 devices | Homes where everything supports WPA3 |
The Wi-Fi Alliance designed transition mode so WPA2 and WPA3 devices can share one password, and WPA3 is never combined with TKIP, even in transition mode. Leave WEP, WPA and TKIP switched off.
Wi-Fi CERTIFIED 7 gear must use WPA3. On August 18, 2026, CableLabs warned that some older devices can't join Wi-Fi 7 access points set up that way. The Wi-Fi Alliance answer is WPA3-Personal Compatibility Mode, so if an older gadget refuses a new Wi-Fi 7 router, look for that option in a firmware update.
Writing a passphrase you can live with
WPA2 and WPA3 Personal accept 8 to 63 characters. Four or more random words, such as copper-tulip-wagon-ninety, give you length and are still easy to type on a TV remote.
- Leave out street addresses, family names and pet names.
- Some older printers and smart gadgets may choke on unusual symbols, so letters, numbers and hyphens are the safer choice.
- Keep it in a password manager, and don't reuse your admin password.
The moment you press Save
Every wireless device drops off at once, including the phone or laptop you used. Wired devices stay online. Each wireless device has to rejoin with the new password before it works again.
Google says the Google Home app sends an alert after 7 days if a device still hasn't reconnected. Renaming the network (the SSID) at the same time has a similar effect, because devices treat a new name as a new network.
To pass on the new key without typing it:
- iPhone: when another Apple device tries to join, your unlocked, connected iPhone offers to share the password. You need to be in each other's contacts.
- Android: the Share Wi-Fi QR code on a Pixel can be scanned by the other phone.
- Guests: print a QR code for the network and keep it by the door.
Reconnecting each type of device
| Device | How to rejoin |
|---|---|
| Phones and laptops | Forget the network, then join it again and enter the new key |
| Google and Nest speakers | Google Home app: touch and hold the device > Settings > Device information > Wi-Fi > Forget this network, then add the device again |
| Alexa devices | Alexa app > Devices > your device > Device Settings > Change or remove a Wi-Fi network (Echo models with a screen: change it on the device) |
| Ring doorbells and cameras | Ring app > your device > Device Health, then the Wi-Fi reconnect option (owner account needed) |
| Printers | The printer's own wireless setup menu, or the maker's app such as HP Smart |
| Smart TVs | The TV's network settings, then pick the network and enter the key |
| PS5 | Settings > Network > Settings > Set Up Internet Connection |
| Smart plugs and bulbs | Often need re-pairing in their own app |
Give guests their own network
A guest network has its own name and password. You can change its password whenever you like without touching your own devices, which suits visitors, short-term tenants and gadgets you don't fully trust. Most routers keep it next to the main Wi-Fi settings, or under a Guest Network menu.
When a device won't rejoin
- Forget the network on the device and retype the key slowly. Capital letters count.
- An older device that only supports WPA2 needs transition mode, not WPA3 only.
- Restart the device and check for a firmware or software update.
- As a last resort, reset the device's network settings.
If one device still fails while the rest connect, the homepage covers band and connection problems in more depth.
Wi-Fi key questions
How often should I change my Wi-Fi password?
There's no set schedule you need to follow. Change it when someone you no longer trust knows it, when a roommate or tenant moves out, or when you move into a home where someone else installed the gateway. A long, unique passphrase doesn't wear out just because time has passed.
Will my old devices work with WPA3?
Many devices made before WPA3 can't use it, and some never get an update that adds it. Transition mode covers most homes, because WPA2 and WPA3 devices join the same network with one password. If a gadget still won't connect, check its maker's site for a firmware update, or keep that one device on the guest network.
Can I change the Wi-Fi password if I only know the old Wi-Fi key?
No. The Wi-Fi key only lets you join the network. Changing it takes the router's admin password, or the account holder's login for the provider's app. If it's your own router and the admin login is lost, a factory reset brings back the login printed on the label.
Can I change the password without knocking devices offline?
Not on your main network. Every wireless device has to learn the new key, so set aside a few minutes to reconnect them. Changing only the guest network's password leaves your own devices alone, which is one reason visitors belong on the guest network.
Does the key on my router's sticker still work after I change it?
No. Once you save a new password, the key on the sticker stops working until someone factory resets the router. Write the new key somewhere safe or keep it in a password manager, so nobody tries the old one and decides the network is broken.
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