Change Your Password Through the Xfinity Website

The fastest way to change your Comcast password is through the Xfinity website on any computer or phone. You log in with your current credentials, navigate to account settings, and reset the password in about two minutes. This method works whether you remember your current password or not, as long as you can still log in.

Go to xfinity.com and click "Sign In" in the top right corner. Enter your Xfinity username (usually your email address) and your current password, then click the sign-in button. Once you are logged in, look for your account name or profile icon in the top right corner and click it to open a dropdown menu.

From the dropdown menu, select "Account" or "My Account" — the exact wording varies depending on which Xfinity service you use (internet, TV, or mobile). This takes you to your account dashboard. Look for a section labeled "Security," "Password," or "Account Settings" and click on it. You should see an option that says "Change Password" or "Update Password." Click that option.

The system will ask you to enter your current password once more for security, then ask you to create a new password. Your new password must be at least 8 characters long and include at least one uppercase letter, one lowercase letter, one number, and one special character (like ! @ # $ % or &). Type your new password, confirm it by typing it again in the next field, and click "Save" or "Update Password." You will see a confirmation message. Your password is now changed when ready.

Key Takeaways

  • The Xfinity website is the quickest way to change your password and takes about two minutes if you can still log in.
  • Your new password must be at least 8 characters and include uppercase, lowercase, a number, and a special character.
  • If you cannot remember your current password, use the "Forgot Password" link on the Xfinity sign-in page instead of trying to change it.
  • Comcast customer service can reset your password over the phone if you do not have internet access or prefer to speak with someone.
  • After you change your password, you will need to sign in again on any device where you were previously logged in.

Reset Your Password If You Forgot It

If you cannot remember your current password, do not try to change it through account settings — instead, use the password recovery option on the sign-in page. Click "Forgot Password" or "Forgot Username or Password" on the Xfinity sign-in screen at xfinity.com.

Xfinity will ask you to verify your identity. You can do this by entering your account number (found on your bill), your phone number, or your email address associated with the account. The system will then send a password reset link to your email address or phone number. Check your email inbox (and spam folder) for a message from Xfinity with the subject line "Reset Your Xfinity Password" or similar. Click the link in that email, and you will be taken to a page where you can create a new password. Follow the same password requirements as above: at least 8 characters with uppercase, lowercase, a number, and a special character.

Change Your Password by Phone

If you do not have internet access or prefer to speak with someone, you can call Comcast customer service to reset your password. Call 1-800-934-6489 for Xfinity internet and TV customers, or 1-888-936-4496 for Xfinity Mobile customers. Have your account number ready — it is on your bill or in any Comcast statement you received.

Tell the representative that you want to change your Xfinity password. They will verify your identity by asking for your account number, the phone number or address on file, and possibly the last four digits of the Social Security number associated with the account. Once verified, the representative can reset your password over the phone. They will give you a temporary password that you can use to log in when ready. You should change this temporary password to something you choose the next time you log in, using the website method described above.

Wait times vary depending on the time of day and day of the week. Calling early in the morning on a weekday usually means shorter hold times than calling in the evening or on weekends.

What to Do After You Change Your Password

After you change your password, you will be logged out of the Xfinity website automatically. Any devices where you were previously logged in — such as a phone, tablet, or streaming device — will also be logged out. This is a security feature and happens on purpose.

You will need to sign in again on each device using your new password. This includes phones, tablets, computers, streaming boxes (like Xfinity Stream or Xfinity Flex), and any other devices connected to your Xfinity account. If you have a large number of devices, this can take a few minutes, but it ensures that only you have access to your account.

If you see a device you do not recognize in your account settings after changing your password, contact Comcast customer service when ready. An unauthorized device on your account could mean someone else had access to your old password.

Password Requirements and Security Tips

Xfinity requires passwords to be at least 8 characters long and to include at least one uppercase letter, one lowercase letter, one number, and one special character. You cannot use spaces, and you cannot reuse any of your last five passwords. If you try to create a password that does not meet these requirements, the system will reject it and ask you to try again.

A strong password is one that is hard to guess. Avoid using your name, your address, your phone number, or any part of your Xfinity username. Do not use common words or straightforward number sequences like "12345" or "qwerty." A good approach is to use a phrase you remember — for example, "MyDog8RunsFast!" — and then replace a letter or two with a number or special character.

If you use the same password across multiple accounts (email, banking, shopping, etc.), consider changing those passwords as well, especially if your Comcast password was weak or straightforward to guess. A password manager like Bitwarden, 1Password, or Dashlane can store strong passwords securely so you do not have to remember them.

Troubleshooting Common Password Change Problems

If you see an error message that says "Password does not meet requirements," check that your password includes all four types of characters: uppercase, lowercase, number, and special character. The most common mistake is forgetting the special character. Try adding a ! or @ at the end of your password and try again.

If the website says "Password change failed" or "An error occurred," wait a few minutes and try again. Temporary server issues sometimes prevent password changes from going through on the first attempt. If the error persists after three attempts, call Comcast customer service at 1-800-934-6489 and ask them to reset your password by phone instead.

If you changed your password but cannot log in with the new one, make sure you are typing it exactly as you created it — passwords are case-sensitive, meaning "MyPassword" is different from "mypassword." If you are still locked out after several attempts, use the "Forgot Password" link to reset it again.

Frequently Asked Questions

How long does it take for a password change to take effect?

A password change takes effect when ready when you click "Save" or "Update Password" on the Xfinity website. You can log in with your new password right away. If you changed your password by phone, the temporary password the representative gave you also works when ready.

Will changing my password affect my internet or TV service?

No. Changing your Xfinity account password only affects your ability to log into the Xfinity website and apps. Your internet connection, TV service, and phone service will continue to work normally. You will not lose service or experience any interruption.

Can I change my password on the Xfinity mobile app?

Yes. Open the Xfinity app on your phone, tap your profile icon or account name, select "Account Settings" or "Security," and look for "Change Password." The process is the same as on the website. You will need to enter your current password before creating a new one.

What should I do if someone else knows my password?

Change your password when ready using the website or phone method described above. Then check your account for any unauthorized changes — look at your billing address, contact information, and any devices linked to your account. If you see anything suspicious, call Comcast customer service at 1-800-934-6489 to report it and ask them to review your account for fraud.

Do I need to change my password regularly?

Comcast does not require you to change your password on a schedule. However, changing your password once or twice a year is a reasonable security practice, especially if you have shared your password with anyone or if you use a similar password on other accounts.