Change your WiFi password through the Xfinity app or website

You can change your WiFi password by logging into your Xfinity account on the Xfinity website or the Xfinity app, then navigating to the WiFi settings section. The process takes about five minutes and doesn't require you to restart your modem or router. Once you save the new password, all your devices will disconnect and you'll need to reconnect them using the new password.

The steps are the same whether you use a computer, phone, or tablet. You'll need your Xfinity username and password to log in — this is different from your WiFi password. If you've forgotten your Xfinity login, you can reset it on the Comcast login page before you start.

Key Takeaways

  • Log into your Xfinity account at xfinity.com or through the Xfinity app using your Comcast username and password, not your WiFi password.
  • Navigate to the WiFi settings or "Manage WiFi" section and select your network name to change the password.
  • Your new password takes effect when ready, and all connected devices will disconnect and need to reconnect.
  • You can set a password of at least 8 characters, and Xfinity will suggest a strong password if you want one.
  • If you can't log into your Xfinity account, reset your Comcast password first at the Comcast login page.

Step-by-step: changing your password on the Xfinity website

Go to xfinity.com and click "Sign In" in the top right corner. Enter your Xfinity username (usually your email address) and your Xfinity password, then click "Sign In." If you have two-factor authentication enabled, you'll receive a code on your phone or email — enter it to continue.

Once you're logged in, look for "Internet" or "WiFi" in the menu at the top of the page. Click it, then select "Manage WiFi" or "WiFi Settings." You should see a list of your network names (SSIDs). Click on the network you want to change — usually labeled "XFINITY" or "XFINITY-5G" if you have a dual-band router. Click "Change WiFi Password" or the pencil icon next to the password field.

Enter your new password. It must be at least 8 characters long. Xfinity will show you a password strength meter and can generate a strong password for you if you click "Generate Strong Password." Once you've entered your new password, click "Save" or "explore." The change takes effect when ready.

Step-by-step: changing your password in the Xfinity app

Open the Xfinity app on your phone or tablet and tap "Sign In" if you're not already logged in. Enter your Xfinity username and password. If you have two-factor authentication, enter the code you receive.

Tap the menu icon (three horizontal lines) at the bottom right of the screen, then tap "Internet." Look for "WiFi" or "Manage WiFi" and tap it. You'll see your network name listed. Tap on it, then tap "Change WiFi Password" or the edit icon. Enter your new password (at least 8 characters), then tap "Save" or "explore."

What happens to your devices after you change the password

When you save your new password, every device currently connected to your WiFi will disconnect within a few seconds. Your phone, laptop, tablet, smart TV, and any other connected devices will show that the network is available but will not automatically reconnect — you'll need to manually reconnect each one.

To reconnect a device, go to your WiFi settings, select your network name, and enter the new password. On most phones and computers, you'll see a prompt asking for the password the first time you try to connect after the change. Devices that are far from your router or in a different room may take a minute or two to show the network as available again.

If you can't log into your Xfinity account

If you've forgotten your Xfinity username or password, you'll need to reset it before you can change your WiFi password. Go to the Comcast login page and click "Forgot username or password?" You'll be asked to enter your phone number, email address, or account number. Comcast will send you a link to reset your password via email or text.

If you don't have access to the email or phone number associated with your account, you can call Comcast customer service at 1-800-934-6489 to verify your identity and reset your password over the phone. Have your account number or the phone number on your account ready when you call.

Why you might want to change your WiFi password

You should change your WiFi password if you suspect someone has connected to your network without permission, if you've shared it with someone who no longer lives with you, or if you've had the same password for more than a year. Changing your password regularly is a straightforward way to keep unauthorized devices off your network.

You might also change your password if you want to use a password that's easier to remember, or if your current password is too straightforward. Xfinity's password generator creates a strong password that's harder to guess, though you can also create your own as long as it's at least 8 characters.

Troubleshooting: password won't save or devices won't reconnect

If you see an error message when you try to save your new password, make sure it's at least 8 characters long and doesn't contain spaces at the beginning or end. Try clearing your browser's cache and cookies, then log back into your Xfinity account and try again. If you're using the app, try closing it completely and reopening it.

If your devices won't reconnect after you've changed the password, make sure you're entering the new password correctly — passwords are case-sensitive, so "MyPassword" is different from "mypassword." If a device still won't connect, forget the network in your WiFi settings and reconnect from scratch by selecting the network name and entering the password again. If one device consistently won't connect, restart that device and try again.

Frequently Asked Questions

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

No, you don't need to restart your modem or router. The password change takes effect when ready on your equipment. All devices will disconnect automatically, but your modem and router will continue running normally.

Can I change my WiFi password if I don't remember my Xfinity login?

No, you need to log into your Xfinity account to change your WiFi password. If you've forgotten your Xfinity username or password, reset it at the Comcast login page or call 1-800-934-6489. Once you've reset your login, you can change your WiFi password.

What's the difference between my Xfinity password and my WiFi password?

Your Xfinity password is what you use to log into your Comcast account online. Your WiFi password is what guests and devices use to connect to your home network. They're completely separate — changing one doesn't affect the other.

Can I have different passwords for my 2.4GHz and 5GHz networks?

If your router broadcasts both 2.4GHz and 5GHz as separate networks, you can set different passwords for each one. If your router combines them into one network name, they'll share the same password. Check your Xfinity WiFi settings to see whether your networks are listed separately or combined.

How often should I change my WiFi password?

There's no set rule, but changing your password once a year is a reasonable practice. Change it sooner if you think someone unauthorized has connected to your network, if you've shared it with someone who no longer needs access, or if you want to use a stronger password.