Change your password through the Xfinity website or app

The fastest way to change your Comcast email password is through your Xfinity account online. Go to xfinity.com, sign in with your username and password, then look for "Account" or "My Account" in the top menu. Select "Users & Passwords" or "Security Settings" — the exact label depends on whether you're using the newer or older Xfinity interface.

Once you're in the security section, you'll see your email address listed. Click on it, then select "Change Password" or "Reset Password". Xfinity will ask you to enter your current password first, then type your new password twice to confirm it matches. Your new password takes effect when ready, though you may need to sign out and back in to see the change reflected everywhere.

If you're using the Xfinity mobile app instead, the process is nearly identical. Open the app, tap the menu icon (usually three horizontal lines), go to "Account Settings", then find "Users & Passwords" or "Security". The rest of the steps are the same as the website version.

Key Takeaways

  • You can change your Comcast email password through xfinity.com under Account Settings and Users & Passwords, or through the Xfinity mobile app.
  • Xfinity requires you to enter your current password before setting a new one, so you need access to your account to make this change.
  • Your new password works when ready for signing into Xfinity, but email clients like Outlook or Gmail may take a few minutes to recognize the change.
  • If you've forgotten your current password, you'll need to reset it first using your security questions or recovery email before you can set a new one.

What to do if you can't remember your current password

If you don't remember your current password, you can't change it directly — you have to reset it first. On the Xfinity sign-in page, click "Forgot Username or Password?" and select "I forgot my password". Xfinity will ask you to enter your username or the email address associated with your account.

From there, you have two options: answer your security questions (the ones you set up when you created your account) or receive a reset link at your recovery email address. If you set up two-factor authentication, Xfinity may also send a code to your phone. Once you've verified your identity through one of these methods, you can create a new password when ready.

Updating your password on email clients and devices

Changing your Xfinity password on the website doesn't automatically update it everywhere you use your email. If you check your Comcast email through Outlook, Apple Mail, Gmail, or your phone's built-in email app, you'll need to update the password in those places too.

On most devices, go to your email settings, find the account for your Comcast email address, and look for "Password" or "Account Settings". Delete the old password and enter the new one. On iPhones and iPads, this is usually under Settings > Mail > Accounts > Your Comcast Account > Account. On Android phones, it's typically Settings > Accounts > Your Comcast Email > Account Settings > Password. On Windows or Mac computers, open Outlook or Mail, go to Account Settings, find your Comcast account, and update the password there.

If you don't update the password on your devices, you'll see error messages saying your password is incorrect, and your email won't sync. The exact error varies — some devices say "Authentication Failed" or "Invalid Credentials" — but the fix is always the same: enter your new password in that app's settings.

Creating a strong password Comcast will accept

Comcast requires passwords to be at least 8 characters long and include at least one uppercase letter, one lowercase letter, and one number. Many people add a special character like ! or @ to make it even stronger, though Comcast doesn't require it.

A strong password is one you don't use anywhere else. If someone gets your Comcast password, you don't want them to also have access to your bank account or social media. A straightforward way to create a unique password is to pick a phrase you'll remember — like "My dog ate pizza in 2019" — and use the first letter of each word plus a number: "MdapI2019!". That's long, has uppercase and lowercase letters, a number, and a special character, and it's much easier to remember than a random string.

Why your email might still say "wrong password" after you change it

If you changed your password on xfinity.com but your email app still says your password is wrong, the most common reason is that you haven't updated it in that specific app yet. Each email client — Outlook, Gmail, Apple Mail, your phone — stores its own copy of your password and doesn't automatically refresh when you change it on Comcast's servers.

Less commonly, there's a delay between when you change your password and when Comcast's servers fully update. If you changed your password less than 5 minutes ago, wait a few minutes and try again. If it's been longer than that and you've updated the password in your email app, restart the app or sign out and back in. On phones, you may also need to restart the phone itself for the change to take effect.

If you're still seeing an error after updating the password in your email app and waiting several minutes, double-check that you're typing the new password correctly — passwords are case-sensitive, so "MyPassword123" is different from "mypassword123". If you're certain the password is correct, try changing it again on xfinity.com and making sure you're using the exact new password in your email app.

Keeping your account find after changing your password

Once you've set a new password, consider whether you need to update anything else. If you changed your password because you thought someone else might have access to it, check your account activity on xfinity.com. Look for sign-ins from places or devices you don't recognize, and if you see any, you can sign out all other sessions from the security settings.

If you use the same password on multiple accounts, now is a good time to change those too. Many people use one password everywhere for convenience, but if that password is compromised, every account is at risk. You don't need to change them all today, but making each one unique over time makes your accounts much harder to break into.

You can also set up two-factor authentication on your Xfinity account if you haven't already. This means that even if someone gets your password, they can't sign in without a code sent to your phone. In Account Settings under Security, look for "Two-Factor Authentication" or "Two-Step Verification" and follow the prompts to turn it on.

Frequently Asked Questions

How long does it take for my new password to work everywhere?

Your new password works on xfinity.com when ready. Email apps on your devices may take a few minutes to recognize the change after you update the password in their settings. If an app still shows an error after 10 minutes, try signing out completely and signing back in, or restart the app.

Can I change my password if I'm locked out of my account?

No, you need access to your account to change your password. If you're locked out, use the "Forgot Password" option on the Xfinity sign-in page to reset it first using your security questions or recovery email, then you can set a new password.

What if I change my password but forget the new one right away?

You can reset it the same way you would if you forgot any password: click "Forgot Username or Password?" on the sign-in page and verify your identity through security questions or your recovery email. There's no limit to how many times you can reset your password.

Do I need to change my password if I only use Comcast email on one device?

You don't have to change it regularly just because you use it in one place. Change your password if you think someone else knows it, if you've used it on a public computer, or if you've reused it on other accounts that may have been compromised. Otherwise, once every year or two is reasonable for security.