Change your WiFi password through the Xfinity app or website in under five minutes
You can change your Xfinity WiFi password by logging into your Xfinity account online, opening the WiFi settings section, and entering a new password. The change takes effect when ready on your router. You do not need to call Comcast or restart your equipment — just update the password in one place and reconnect your devices.
The fastest route is the Xfinity mobile app if you have it installed. The website works just as well if you prefer a browser. Both methods show you the same steps and take about three minutes.
Key Takeaways
- Log into your Xfinity account at xfinity.com or through the Xfinity app using your username and password.
- Navigate to the WiFi settings or Internet section and select your gateway or router by name.
- Change the WiFi password (also called the network key or passphrase) to something you can remember but others cannot guess.
- Your devices will disconnect when ready and must reconnect using the new password — you do not need to restart the router.
- If you forget the new password, you can view it again in the same Xfinity account section where you changed it.
Step-by-step: changing your password on the Xfinity website
Go to xfinity.com and sign in with your Xfinity username and password. If you do not remember your username, you can use your phone number or email address instead.
Once you are signed in, look for the Internet or WiFi section in your account menu. This is usually listed under "Services" or "My Account." Click on it. You should see your gateway or modem listed by name — it often looks like "Xfinity Gateway" or "ARRIS" followed by numbers.
Click on your gateway name. A new screen will open showing your current WiFi network name and password. Look for a button or link that says "Change WiFi Password," "Edit," or "Manage WiFi." Click it. Enter your new password in the field provided. Xfinity requires passwords to be at least 8 characters long and recommends mixing uppercase letters, lowercase letters, numbers, and symbols.
Click "Save" or "Confirm." The website will tell you the change was successful. Your new password is now active.
Step-by-step: changing your password in the Xfinity app
Open the Xfinity app on your phone and sign in if you are not already logged in. Tap the menu icon (three horizontal lines) in the bottom right corner or top left, depending on your phone type.
Look for "Internet" or "WiFi Settings." Tap it. You will see your gateway listed. Tap on your gateway name. A screen will appear showing your current WiFi name and password. Look for "Change WiFi Password" or an edit icon.
Tap to edit. Enter your new password — again, at least 8 characters, mixing uppercase, lowercase, numbers, and symbols makes it stronger. Tap "Save" or "Confirm." The app will confirm the change was successful.
What happens to your devices after you change the password
Every device currently connected to your WiFi will disconnect within a few seconds. This includes phones, tablets, laptops, smart TVs, security cameras, smart speakers, and any other connected device. You do not need to restart your router or modem — the change happens when ready.
To reconnect each device, open its WiFi settings, find your network name in the list, and select it. When prompted, enter your new password. The device will connect and stay connected until you change the password again.
If you have many devices, you can reconnect them one at a time over the next few minutes. There is no rush — your internet service itself keeps working even while devices are disconnected from WiFi.
Choosing a password that is strong but memorable
A strong password is one that someone cannot guess by knowing you. Avoid birthdays, addresses, pet names, or common words. A good approach is to use a phrase you remember and take the first letter of each word, then add a number and symbol.
For example, "My dog loves pizza in summer" becomes "MdlpiS2024!" — a password that mixes uppercase, lowercase, numbers, and a symbol, and is hard for someone else to guess but straightforward for you to remember. Write it down somewhere safe, like a password manager or a locked notebook, so you do not lose it.
If you forget your new password
You can view your current WiFi password anytime by logging back into your Xfinity account and going to the same WiFi settings section where you changed it. The password will be displayed there (sometimes hidden behind a "show" button). You do not need to change it again — just look it up and use it to reconnect your device.
If you have forgotten your Xfinity account password itself, go to xfinity.com and click "Forgot username or password?" You will be asked to verify your identity using your phone number, email, or account number, and Xfinity will send you a reset link.
Why you might want to change your WiFi password
Change your password if someone you no longer trust has it, if you share it with guests and want to cut off their access, or if you have not changed it in a long time. A password that has been the same for years is more likely to have been shared or guessed by someone you do not know.
You do not need to change it regularly just for security's sake — once or twice a year is reasonable. If you suspect someone is using your WiFi without permission (your internet is slow, or you see unfamiliar devices in your account), changing the password will disconnect them when ready.
Frequently Asked Questions
Do I need to restart my router after changing the password?
No. The password change takes effect when ready. Your router does not need to be restarted. All your currently connected devices will disconnect automatically, but the router itself keeps running without interruption.
Will changing my WiFi password affect my internet speed?
No. Your internet speed depends on your service plan and the router itself, not the password. Changing the password only affects which devices can connect — it does not change how fast the connection is.
Can I change my WiFi password from my phone if I am not home?
Yes. As long as you have the Xfinity app or can access xfinity.com on your phone, you can change your password from anywhere. You do not need to be near your router or connected to your home WiFi to make the change.
What if I change the password and one of my devices will not reconnect?
"Forgetting" the network on that device and reconnecting from scratch usually fixes it. Go to the device's WiFi settings, find your network name, and select "Forget" or "Remove." Then search for the network again, select it, and enter your new password. This works for phones, tablets, and most smart devices.
Can I have two different WiFi passwords for the same router?
Some Xfinity gateways allow you to set up a guest network with a separate password. This lets visitors connect without knowing your main password. Check your WiFi settings in the Xfinity app or website — if your gateway supports it, you will see a "Guest Network" option where you can create and manage a separate password.