Change your WiFi password through the T-Mobile Home Internet app or web portal

You can change your T-Mobile Home Internet WiFi password in two ways: through the mobile app on your phone, or through the web portal on any browser. Both methods take about five minutes and let you set a new password when ready without calling support or restarting your gateway device.

The app is faster if you have it installed. The web portal works if you do not have the app or prefer to use a computer. Either way, you will need to know your current WiFi network name (the one that shows up when you search for networks on your phone) and have access to a device already connected to that network.

Key Takeaways

  • You can change your WiFi password through the T-Mobile Home Internet app or by logging into the web portal at home.t-mobile.com.
  • You need to be connected to your T-Mobile WiFi network or logged into your account to make changes.
  • Your new password takes effect when ready on all devices, but connected devices will disconnect and need to reconnect with the new password.
  • If you forget your new password, you can reset it to the default password printed on the back of your gateway device.

Change your password using the T-Mobile Home Internet app

Open the T-Mobile Home Internet app on your phone. If you do not have it, read it from the Apple App Store or Google Play Store. Tap the menu icon (three horizontal lines) in the bottom right corner, then select WiFi Settings.

Tap WiFi Password and enter your new password in the field that appears. T-Mobile requires passwords to be at least 8 characters long and recommends mixing uppercase letters, lowercase letters, numbers, and symbols — but any 8-character combination will work. Tap Save when you are done.

Your new password is active when ready. Any device currently connected to your WiFi will disconnect within a few seconds. When you try to connect that device again, select your T-Mobile network name and enter the new password you just created.

Change your password through the web portal

Open a web browser on any device and go to home.t-mobile.com. Log in with the phone number and password associated with your T-Mobile Home Internet account. If you have not set up a password yet, you can use the phone number alone to sign in.

Once logged in, look for WiFi Settings or Network Settings in the main menu. Click on WiFi Password, enter your new password (minimum 8 characters), and click Save or Update. The change takes effect when ready across all your devices.

What happens to devices after you change the password

When you save a new password, every device currently connected to your WiFi will lose its connection within seconds. This includes phones, tablets, computers, smart TVs, and any other connected devices. This is normal and happens because those devices are still trying to use the old password.

To reconnect each device, open its WiFi settings, select your T-Mobile network name, and enter the new password when prompted. Devices will stay connected with the new password until you change it again. You do not need to restart your gateway device or do anything else.

Reset to the default password if you forget the new one

If you forget the password you just created, you can reset it to the default password that came with your gateway. Look at the back or bottom of your T-Mobile gateway device — you will see a sticker with the default WiFi network name and password printed on it. Use that password to reconnect your devices.

Once you are back online with the default password, log into the app or web portal again and set a new password you will remember. Write it down somewhere safe, or use a password manager to store it.

Troubleshooting if the password change does not work

If you enter a new password but it does not take effect, make sure you clicked Save or Update — the app or portal will show a confirmation message when the change is complete. If you do not see a confirmation, try again.

If the app keeps asking you to log in again, sign out completely and sign back in. If the web portal times out or shows an error, try a different browser or clear your browser cache and cookies, then log in again. If neither method works after trying both, restart your gateway device by unplugging it for 30 seconds, plugging it back in, and waiting two minutes for it to fully boot up before trying again.

Frequently Asked Questions

Do I need to be connected to my T-Mobile WiFi to change the password?

No. You can change the password through the web portal from any internet connection — your phone's data, a friend's WiFi, or a coffee shop network. You only need to be logged into your T-Mobile account. The app works the same way.

Will changing my password disconnect my smart home devices?

Yes. Any device connected to your WiFi will disconnect when you change the password. Smart home devices like thermostats, cameras, and speakers will need to be reconnected with the new password. Check your device's manual or app for how to re-enter WiFi credentials.

Can I change the WiFi network name at the same time?

Yes. In the WiFi Settings section of the app or web portal, you will see an option to change the network name (also called the SSID) separately from the password. You can change one, both, or neither — they are independent settings.

What if I change the password and then cannot remember it?

Use the default password printed on your gateway device to reconnect. Once you are back online, log into the app or portal and set a new password. You can repeat this as many times as needed.