Change Your WiFi Password Through the Xfinity App or Website
You can change your Xfinity WiFi password in about five minutes using either the Xfinity My Account app or the website at xfinity.comcast.net. The app is usually faster if you have it installed. Both routes take you to the same settings page, and you do not need to call Comcast or restart your router.
The password you are changing is the one people use to connect their phones, laptops, and other devices to your home WiFi network — not the password you use to log into your Xfinity account itself. Once you change it, all devices currently connected will stay connected, but any new device trying to join will need the new password.
Key Takeaways
- You can change your WiFi password through the Xfinity app or at xfinity.comcast.net without calling support or restarting your router.
- The WiFi password is separate from your Xfinity account login password, and changing one does not affect the other.
- After you change the password, devices already connected stay online, but new devices will need the new password to join.
- If you do not remember your Xfinity account password, you will need to reset it before you can change your WiFi password.
- Some older Xfinity gateways require you to log into the router's settings page directly instead of using the app.
Change Your Password Using the Xfinity App
Open the Xfinity My Account app on your phone or tablet. 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 tap Internet.
Look for the section labeled WiFi Settings or WiFi Network Name and Password. Tap it. You will see your current network name (SSID) and a button or link to change your password. Tap Change WiFi Password. Enter your new password — it must be at least 8 characters long and can include numbers, letters, and symbols. Tap Save or Confirm. The app will show a confirmation message within a few seconds.
Change Your Password Using the Xfinity Website
Go to xfinity.comcast.net in any web browser and sign in with your Xfinity username and password. Click Internet in the top menu or in the left sidebar, depending on your screen size.
Find the section for WiFi settings — it may be labeled WiFi, WiFi Settings, or Manage WiFi. Click on it. You will see your network name and a button to change your password. Click Change WiFi Password or Edit. Type your new password (8 characters minimum), then click Save. The page will confirm the change was saved.
What Happens to Devices After You Change the Password
Devices that are already connected to your WiFi will stay connected and will not be kicked off. You do not need to do anything to them. However, if someone tries to connect a new device — a guest's phone, a new laptop, a smart home device — they will need to enter your new password.
If a device was connected before the change and suddenly stops working, it usually means it tried to reconnect and failed. Forget the network on that device and reconnect by selecting your network name and entering the new password. On most phones and laptops, you can do this in WiFi settings without restarting anything.
If You Cannot Access the App or Website
If you do not remember your Xfinity account password, you will not be able to sign into the app or website. Go to xfinity.comcast.net and click Forgot Username or Password. Follow the prompts to reset your password using your email address or phone number. Once your account password is reset, you can then change your WiFi password using either method above.
If you have a very old Xfinity gateway (more than five or six years old), the app or website method may not work. In that case, you will need to log into your router's settings page directly. Open a web browser and go to 192.168.0.1 or 192.168.100.1. Sign in with the username admin and your Xfinity account password. Look for WiFi settings or wireless settings, find the password field, and change it there. This is less common now, but if the app tells you it cannot change your password, this is the backup route.
Why You Might Want to Change Your WiFi Password
The most common reason is that someone you no longer want on your network knows the old password — a former roommate, a guest who overstayed, or someone who wrote it down. Changing the password removes their access when ready without affecting your own devices.
Another reason is security. If you have not changed your WiFi password since you set up your gateway, or if you are using the default password that came with the router, changing it to something only you know is a good step. Avoid using personal information like birthdays or names — use a mix of letters, numbers, and symbols instead.
Frequently Asked Questions
Do I need to restart my router after changing the WiFi password?
No. The change takes effect when ready. You do not need to unplug your router or restart anything. Devices already connected will stay online without interruption.
Will changing my WiFi password affect my Xfinity email or account login?
No. Your WiFi password and your Xfinity account password are completely separate. Changing one has no effect on the other. Your email and account login will work exactly as before.
What if I change the password and then forget it?
You can change it again using the same steps. Go back into the Xfinity app or website, sign in with your account password, and set a new WiFi password. There is no limit to how many times you can change it.
Can I change my WiFi password if I am not the account holder?
No. You need to sign into the Xfinity account to change the WiFi password. Only the account holder or someone with the account password can make this change. If you live with the account holder, ask them to change it for you.
Why does the app say it cannot change my password?
This usually means your gateway is very old or not fully compatible with the app. Try using the website instead at xfinity.comcast.net. If the website also does not work, you can log into your router's settings page directly at 192.168.0.1 and change the password there.