Change Your WiFi Password Through the Xfinity App or Website

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

The easiest method is the Xfinity app if you have it installed. Open the app, tap the menu icon (three horizontal lines), select "Internet," then tap "WiFi Settings." From there you'll see an option to change your WiFi password. On a computer, go to xfinity.com, sign in with your Xfinity ID and password, click "Internet," then "WiFi Settings," and look for the password change option.

Key Takeaways

  • You can change your WiFi password through the Xfinity app or at xfinity.com without calling Comcast or restarting your modem.
  • Your new password must be between 8 and 63 characters and can include letters, numbers, and special characters like hyphens or underscores.
  • All devices connected to your WiFi will disconnect when ready after you change the password and will need to reconnect using the new one.
  • If you can't log into your Xfinity account, you can reset your password at xfinity.com or call Comcast at 1-800-XFINITY to verify your identity first.

Step-by-Step Instructions for the Xfinity App

Open the Xfinity app and tap the three horizontal lines in the bottom right corner to open the menu. Scroll down and tap "Internet" — you'll see your current internet plan and status. Look for "WiFi Settings" and tap it. You should see your current network name (SSID) and an option to change your password.

Tap "Change WiFi Password" or the edit icon next to your password field. Enter your new password in the box that appears. Remember that Xfinity requires passwords to be at least 8 characters long and no more than 63 characters. You can use uppercase letters, lowercase letters, numbers, and special characters like hyphens, underscores, or periods. Avoid spaces in your password.

After you enter your new password, tap "Save" or "Confirm." The app will show a confirmation message. At this point, your WiFi password has changed and all devices currently connected will be kicked off your network. You'll need to go to each device's WiFi settings, find your network name, and enter the new password to reconnect.

Step-by-Step Instructions on a Computer

Go to xfinity.com in your web browser and click "Sign In" in the top right corner. Enter your Xfinity ID (usually your email address) and your Xfinity password. If you have two-factor authentication turned on, you'll receive a code via text or email — enter that code to complete the sign-in.

Once you're logged in, look for "Internet" or "My Services" in the main menu and click it. Find and click "WiFi Settings" or "Manage WiFi." You'll see your current network name and a section to change your password. Click the edit icon or "Change Password" button next to your current password.

Type your new password into the field. Make sure it's between 8 and 63 characters and doesn't contain spaces. Click "Save" or "explore" to confirm the change. Your password will update when ready, and you'll see a confirmation message on the screen. All devices will disconnect from your WiFi within a few seconds.

What Happens to Your Devices After You Change the Password

When you change your WiFi password, every device connected to your network — phones, tablets, laptops, smart TVs, printers, and smart home devices — will lose its connection within seconds. This is normal and expected. Your modem and router do not need to be restarted.

To reconnect a device, go to its WiFi settings, find your network name in the list of available networks, and select it. When prompted, enter your new password exactly as you typed it (passwords are case-sensitive, so "MyPassword" is different from "mypassword"). Once you enter the correct password, the device will reconnect and should work normally.

If a device won't reconnect after you enter the correct password, try "forgetting" the network first. On most phones and tablets, you can do this by holding down your network name in the WiFi settings and selecting "Forget" or "Remove." Then select the network again and re-enter the password. For smart home devices like Alexa or Google Home, you may need to go through their setup process again.

Password Requirements and Best Practices

Xfinity requires your WiFi password to be between 8 and 63 characters long. You can use uppercase letters (A–Z), lowercase letters (a–z), numbers (0–9), and special characters like hyphens (-), underscores (_), periods (.), and exclamation marks (!). Do not use spaces in your password.

A strong password is harder for someone to guess or crack. Instead of using a straightforward word like "password123," try combining random words with numbers and symbols — for example, "Blue-Tiger-42!" or "Coffee_Moon_99." Avoid using personal information like your birthday, address, or pet's name, even if you add numbers to it. Write your new password down somewhere safe, or store it in a password manager, so you don't forget it.

Troubleshooting: What to Do If You Can't Access Your Account

If you can't remember your Xfinity ID or password, you can reset it before you try to change your WiFi password. Go to xfinity.com and click "Sign In." Below the sign-in boxes, click "Forgot Xfinity ID?" or "Forgot Password?" and follow the prompts. Xfinity will send a reset link to the email address associated with your account or will ask you to verify your identity by answering security questions.

If you don't have access to the email address on file or can't answer your security questions, you'll need to call Comcast at 1-800-XFINITY (1-800-993-4689). Have your account number ready — you can find it on your Comcast bill. A representative can verify your identity and help you regain access to your account so you can change your WiFi password online.

If you're logged into your Xfinity account but can't find the WiFi Settings option, your account may not have internet service active, or your modem may not be online. Check that your Xfinity modem is powered on and that the lights on the front are lit (usually a power light and an internet light). If the internet light is off or red, restart your modem by unplugging it for 30 seconds, plugging it back in, and waiting two minutes for it to fully restart.

Frequently Asked Questions

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

No, you do not need to restart your modem. The password change takes effect when ready on Xfinity's servers. Your modem will continue running normally. All your connected devices will straightforward disconnect and need to reconnect with the new password.

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

Yes. As long as you're connected to your Xfinity WiFi or any other internet connection, you can open the Xfinity app or go to xfinity.com and change your password from anywhere. You don't need to be physically near your modem or router.

What if I change my password but my devices still won't connect?

Make sure you're typing the password exactly as you created it — passwords are case-sensitive. If you're still having trouble, forget the network on your device and reconnect from scratch. If one specific device won't connect after multiple attempts, try restarting that device. If all your devices won't connect, double-check that you saved the new password correctly in your Xfinity account.

Can I change my WiFi password back to the original one?

Yes, you can change your password to any combination you want at any time. Follow the same steps in the Xfinity app or website and enter your old password (or any new password) in the password field. There's no limit to how many times you can change it.

Will changing my WiFi password affect my internet speed?

No. Changing your WiFi password does not affect your internet speed or connection quality. It only changes the password people need to enter to connect to your network. Your modem and router will continue operating at the same speed as before.