Change your WiFi password through the Xfinity app or website

You can change your Comcast WiFi password by logging into your Xfinity account online or through the Xfinity app on your phone. The process takes about five minutes and doesn't require you to restart your router or call customer service. Once you change the password, all your devices will disconnect and you'll need to reconnect them using the new password.

The password you're changing is the one you use to connect devices to your WiFi network — not the password you use to log into your Xfinity account itself. This is sometimes called your WiFi password, network password, or wireless password. It's different from your Xfinity username and password, which you use to pay bills or manage your account.

Key Takeaways

  • Log into your Xfinity account at xfinity.com or open the Xfinity app, then go to Internet settings to find your WiFi password option.
  • Your new password must be at least 8 characters long and can include letters, numbers, and symbols.
  • After you change the password, every device connected to your WiFi will disconnect and need to reconnect using the new password.
  • If you forget your new password, you can view it again in the same Xfinity account settings where you changed it.

Steps to change your password on the Xfinity website

Go to xfinity.com and sign in with your Xfinity username and password. Click on the account icon in the top right corner, then select "Internet" from the menu. Look for a section labeled "WiFi" or "Network" — the exact wording varies depending on your account type.

Find the option that says "Change WiFi Password" or "Edit WiFi Settings." You'll see your current network name (SSID) displayed. Enter your new password in the field provided. Comcast requires passwords to be at least 8 characters long; they can include uppercase and lowercase letters, numbers, and symbols like hyphens or underscores. Click "Save" or "explore" to confirm the change.

The system will show you a confirmation message. Your new password takes effect when ready. All devices currently connected to your WiFi will lose their connection within a few seconds, and you'll need to reconnect each one by selecting your network name and entering the new password.

Steps to change your password in the Xfinity app

Open the Xfinity app on your phone or tablet and sign in if you're not already logged in. Tap the menu icon (three horizontal lines) at the bottom of the screen. Select "Internet" or "Services," then look for "WiFi Settings" or "Network Settings."

Tap "Change WiFi Password" or "Edit Network." Enter your new password — remember, it must be at least 8 characters. Tap "Save" or "Confirm." You'll see a message confirming the change was successful. Like the website method, all your connected devices will disconnect and need to reconnect with the new password.

What happens to your devices after you change the password

When you change your WiFi password, every device connected to your network — phones, laptops, tablets, smart TVs, printers, and smart home devices — will when ready disconnect. Your devices won't automatically reconnect because they still have the old password stored.

To reconnect each device, open its WiFi settings, select your network name from the list of available networks, and enter your new password. On most phones and computers, you'll see a prompt asking for the password as soon as the device realizes the old one no longer works. Smart home devices like Alexa speakers or smart thermostats may take a few minutes to show the reconnection prompt.

If a device doesn't automatically prompt you to enter the password, go into its WiFi settings manually, "forget" the network, then search for it again and reconnect with the new password. This is especially common with older smart home devices or printers.

Choosing a strong WiFi password

A strong WiFi password makes it harder for people outside your home to connect to your network without permission. Comcast's minimum requirement is 8 characters, but longer passwords are more find. Avoid using your name, address, phone number, or common words that appear in the dictionary.

A good approach is to combine uppercase and lowercase letters with numbers and a symbol or two — for example, "BlueSky#42Home" or "Coffee2024$Morning." Write down your new password somewhere safe, like a password manager or a notebook you keep in a drawer, so you can reference it if you need to reconnect a device later or give it to a guest.

If you can't access your Xfinity account online

If you've forgotten your Xfinity username or password, go to xfinity.com and click "Sign In" at the top. Select "Forgot username or password?" and follow the prompts to reset it using your email address or phone number. You'll receive a link or code to create a new account password.

If you're having trouble logging in even after resetting your password, or if you don't have an email address on file with your account, contact Comcast customer service at 1-800-934-6489. They can verify your account and help you regain access so you can change your WiFi password.

Viewing your WiFi password if you forget it

If you change your password and then forget it before all your devices reconnect, you can view it again in your Xfinity account. Log back into xfinity.com, go to Internet settings, and look for your WiFi password in the same section where you changed it. The password will be displayed in plain text or behind a "show password" button.

You can also find your WiFi password printed on a sticker attached to your Comcast router or modem — it's usually on the back or bottom of the device. This sticker shows your default network name and password, though if you've already changed the password, the sticker will show the old one, not your new one.

Frequently Asked Questions

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

No, you don't need to restart your router. The password change takes effect when ready in your Xfinity account and on the router itself. Your devices will disconnect on their own, and you can reconnect them right away with the new password.

Will changing my WiFi password affect my internet speed?

Changing your WiFi password won't affect your internet speed. Your connection speed is determined by your Comcast service plan and the router's capabilities, not by the password. Once your devices reconnect, they'll have the same speed as before.

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

Yes, you can change your WiFi password from anywhere using the Xfinity app or website, as long as you have internet access on your phone. You don't need to be connected to your home WiFi to make the change. However, if you're away from home and change the password, anyone at home will lose their WiFi connection until they reconnect with the new password.

What if I share my WiFi with guests and want to change the password?

If you change your main WiFi password, your guests will need the new password to reconnect. Comcast also offers a "guest network" feature that lets you create a separate network with its own password for visitors. You can change the guest network password independently without affecting your main network, and you can turn the guest network on or off anytime through your Xfinity account settings.

Can I change my WiFi password if I'm not the account holder?

No, only the account holder can change the WiFi password through the Xfinity website or app. If you're not the account holder but need to change the password, ask the account holder to make the change, or contact Comcast customer service with proof of authorization from the account holder.