Change Your WiFi Password Through the Xfinity App or Website

The fastest way to change your Comcast WiFi password is through the Xfinity My Account app or website. You log in with your Comcast username and password, find your gateway (the modem and router device), and change the WiFi name and password from there. The change takes effect within a few minutes, and you'll need to reconnect all your devices using the new password.

You do not need to call Comcast or restart your equipment to change the password this way. The system updates automatically. If you have never logged into your Xfinity account online, you can set that up at xfinity.com using the account number on your Comcast bill.

Key Takeaways

  • Log into your Xfinity account at xfinity.com or through the Xfinity My Account app using your Comcast username and password.
  • Navigate to the WiFi settings section, select your gateway device, and choose the option to change your WiFi password.
  • Your new password takes effect within a few minutes, and all connected devices will lose connection until you reconnect them with the new password.
  • If you forget your new password, you can view it again in the same Xfinity account section where you changed it.
  • Changing your password through the app or website does not require a technician visit or a phone call to Comcast support.

Step-by-Step: Changing Your Password on the Xfinity Website

Start by opening a web browser and going to xfinity.com. Click "Sign In" in the top right corner and enter your Comcast username (usually your email address) and your account password. If you have not set up online access yet, you will see an option to create an account using your account number and service address.

Once you are logged in, look for "Internet" or "WiFi" in the main menu. Click it, then select "Manage WiFi" or "WiFi Settings." You should see a list of your gateway devices — most homes have one. Click on the gateway you want to change, then look for "WiFi Name and Password" or "WiFi Settings." Click the pencil icon or "Edit" button next to the password field.

Type your new password in the field. Xfinity requires passwords to be at least 8 characters long and recommends mixing uppercase letters, lowercase letters, numbers, and symbols. Write down your new password before you click "Save" or "explore." The system will confirm the change and tell you it may take a few minutes to take effect.

Step-by-Step: Changing Your Password in the Xfinity App

read the Xfinity My Account app from the Apple App Store or Google Play Store if you do not have it already. Open the app and sign in with your Comcast username and password. Tap the menu icon (three horizontal lines) in the bottom right corner, then tap "Internet."

You will see your gateway listed. Tap on it, then tap "WiFi Settings" or "Manage WiFi." Look for the option to change your WiFi password — it may say "WiFi Name and Password" or "Edit WiFi." Tap the pencil icon next to the password field, enter your new password, and tap "Save." The app will confirm the change within a few minutes.

What Happens After You Change Your Password

Your devices will stay connected to the old WiFi network for a short time, but they will not be able to access the internet once the new password takes effect. You will see a message on your phone, laptop, or tablet saying the WiFi network requires a password or that the connection failed. This is normal.

Go to your WiFi settings on each device, find your Comcast network name (also called the SSID), and tap or click "Forget" or "Remove." Then search for the network again, select it, and enter your new password. Your device will reconnect and you will have internet access again. Repeat this for every device that was connected to your WiFi.

If you have smart home devices like security cameras, doorbells, or smart speakers, you will need to reconnect those too. Check the device's app or manual for instructions on how to change the WiFi network and password it uses.

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 page where you changed it. The password will be displayed there (usually hidden behind dots, but you can click "Show" to reveal it). You do not need to change it again — just use the password shown on that page to reconnect your devices.

If you forget your Comcast account password itself, go to xfinity.com and click "Sign In," then click "Forgot username or password?" You will be asked to verify your identity using your account number, phone number, or email address. Comcast will send you a link to reset your account password.

Changing Your WiFi Name at the Same Time

While you are in the WiFi settings, you can also change your WiFi network name (SSID) — the name that appears when you search for available networks. Some people change both the name and password together to make it easier to remember. The WiFi name does not have to be complicated; it just needs to be something you can recognize.

The WiFi name can be up to 32 characters long and can include letters, numbers, spaces, and most symbols. Avoid using special characters that might cause problems on older devices. After you change the name, your devices will no longer see the old network name and will need to search for the new one and reconnect with your password.

Troubleshooting: Password Change Not Working

If you change your password in the Xfinity app or website but your devices still connect with the old password, wait 10 to 15 minutes and try again. Sometimes the change takes longer than expected to reach your gateway. Restart your gateway by unplugging it for 30 seconds, plugging it back in, and waiting for all the lights to stabilize (usually 2 to 3 minutes).

If you still cannot connect after restarting, log back into your Xfinity account and check that the password change was actually saved. The password field should show your new password (hidden as dots). If it still shows your old password, try changing it again. If the change keeps reverting, contact Comcast support — this usually means a technical issue with your account or gateway that requires a technician.

Frequently Asked Questions

Do I need to restart my modem after changing my WiFi password?

No, you do not need to restart it. The password change takes effect automatically within a few minutes. However, if your devices cannot connect after waiting 10 minutes, restarting the modem by unplugging it for 30 seconds can help. You do not need to call Comcast or schedule a technician visit.

Can I change my WiFi password if I do not remember my Comcast account password?

No, you need to log into your Xfinity account first. If you forgot your account password, go to xfinity.com and click "Forgot username or password?" You can reset it using your account number, phone number, or email address. Once you reset your account password, you can then change your WiFi password.

What if I change my password and my smart TV or printer cannot reconnect?

Go into that device's WiFi settings and remove or forget the old Comcast network. Then search for available networks again, select your Comcast network, and enter your new password. For devices without a screen (like printers), check the device's manual or app for instructions on how to change the WiFi network it connects to.

Will changing my WiFi password affect my internet speed?

No, changing your password does not change your internet speed. Your speed is determined by your Comcast service plan, not by your WiFi password. If you notice slower speeds after changing your password, it is likely a coincidence — check that all your devices are fully connected and that you are not too far from your gateway.

Can I change my WiFi password from my phone if I am away from home?

Yes, you can use the Xfinity My Account app from anywhere as long as you have internet access (through mobile data or another WiFi network). Log in, go to WiFi settings, and change your password the same way you would at home. The change will take effect on your home gateway within a few minutes.