Change your Comcast email password through the Xfinity website or app

To change your Comcast email password, sign into your Xfinity account at xfinity.comcast.net, go to Account Settings, select Security, and choose Change Password. You will need your current password to confirm the change. The new password takes effect when ready, and you will be signed out of all active sessions so you can sign back in with the new one.

If you use the Xfinity mobile app instead, tap the menu icon, go to Account, then Security, and select Change Password. The process is the same — you confirm your current password and create a new one. Both methods work equally well; use whichever is more convenient for you.

Key Takeaways

  • You change your Comcast email password in Account Settings under Security on the Xfinity website or app, not through your email client.
  • Your current password must be entered to confirm the change, so have it ready before you start.
  • The new password takes effect right away and logs you out everywhere, requiring you to sign back in on all devices.
  • A strong password should be at least 12 characters and mix uppercase, lowercase, numbers, and symbols to protect your account.
  • If you forget your password before changing it, use the "Forgot Password" link on the Xfinity login page to reset it first.

What happens after you change your password

Once you confirm the new password, Xfinity logs you out of your account on every device — your phone, tablet, computer, and any other place you were signed in. This is a security measure to make sure only you can access the account with the new password. You will need to sign back in on each device using your new password.

Your email itself does not stop working during this time. You can still receive messages. However, if you use Comcast email on a phone or desktop email program like Outlook or Apple Mail, you will need to update the password in those programs too, or they will fail to send and receive mail. The email program will usually prompt you to re-enter your password the next time it tries to sync.

Creating a password that is hard to guess

Comcast requires passwords to be at least 8 characters, but longer passwords are harder to crack. Aim for 12 characters or more. Mix uppercase letters, lowercase letters, numbers, and symbols like ! @ # $ % to make the password stronger.

Avoid using your name, birthdate, address, or other information someone could find out about you. Do not reuse a password from another account — if that other site is breached, someone could try the same password on your Comcast account. A password manager like Bitwarden, 1Password, or KeePass can generate and store strong passwords so you do not have to remember them.

Updating email programs after you change your password

If you read Comcast email through Outlook, Apple Mail, Gmail, or another email program, that program stores your old password. After you change it, the program will try to use the old password and fail. You will usually see an error message asking you to re-enter your password.

Open the email program's settings, find the account for your Comcast email address, and update the password field with your new one. The exact steps vary by program — in Outlook on Windows, go to File, then Account Settings, then Account Settings again, select your Comcast account, and click Change. In Apple Mail, go to Mail, then Preferences, select Accounts, click your Comcast account, and update the password field.

If you cannot remember your current password

You cannot change your password without entering the current one first. If you have forgotten it, go to the Xfinity login page at xfinity.comcast.net and click "Forgot Password." Xfinity will ask you to verify your identity using your phone number, email address, or security questions you set up when you created the account.

After you verify your identity, Xfinity sends a password reset link to your email or phone. Click the link and create a new password. Once that is done, you can then change it again if you want to use a different one. This two-step process takes a few extra minutes but is necessary for security.

Signing back in on your devices

After you change your password, you will be logged out everywhere. On your phone, tablet, or computer, open the Xfinity app or go to xfinity.comcast.net and sign in with your email address and new password. If you use Xfinity for internet, TV, or phone service, you may also need to sign back into the Xfinity Stream app or other Comcast apps.

If you have multiple devices, you do not have to sign in to all of them at once. You can do it one at a time as you use each device. Signing in again is faster than the password change itself — it usually takes less than a minute per device.

Frequently Asked Questions

Can I change my password on my phone?

Yes. Open the Xfinity app, tap the menu, go to Account, select Security, and choose Change Password. The process is the same as on a computer. You will need your current password to confirm the change.

What if I change my password but still cannot sign in?

Wait a few minutes — the change sometimes takes a moment to sync across Xfinity's servers. Then try signing in again. If it still does not work, make sure you are using the correct email address and that Caps Lock is not on. If you still have trouble, use the "Forgot Password" link to reset it.

Do I have to change my password for my internet service too?

No. Your Xfinity account password and your internet Wi-Fi password are separate. Changing your account password does not change your Wi-Fi password. If you want to change your Wi-Fi password, that is a different process in the Xfinity app under Network settings.

Will changing my password affect my Comcast TV or phone service?

No. Your password change only affects your Xfinity account login. Your TV and phone service will continue to work normally. You may need to sign back into the Xfinity Stream app if you use it to watch TV on other devices.