Access your Comcast router settings through the admin page

To change your Comcast WiFi password, you log into your router's admin page using a web browser on any device connected to your network. Open a browser and go to 192.168.0.1 or 192.168.100.1 — one of these addresses will load your router's login screen. If neither works, check the back or bottom of your router for a sticker that lists the correct address.

When the login page appears, enter your username and password. The default username is usually admin and the default password is motorola (or sometimes motorola123), though Comcast may have changed these when your account was set up. If you changed them before and do not remember them now, you will need to reset the router to factory settings — this erases all your custom settings and returns it to defaults.

Once you are logged in, look for a section called WiFi, Wireless, or Advanced. The exact location depends on your router model, but most Comcast routers (Xfinity gateways) group WiFi settings in one of these areas.

Locate the WiFi password field and enter your new password

In the WiFi settings section, find the field labeled WiFi Password, Passphrase, or Pre-Shared Key (PSK). This is where your current password is stored — you may not see the actual characters, only dots or asterisks for security.

Clear this field and type your new password. Comcast requires WiFi passwords to be between 8 and 63 characters long. You can use uppercase letters, lowercase letters, numbers, and special characters like hyphens or underscores. Avoid spaces, as some devices have trouble connecting when the password contains them.

Write down your new password before you save it. Once you change it, every device currently connected to your WiFi will be disconnected, and you will need to reconnect each one using the new password.

Save your changes and reconnect your devices

Look for a Save, Apply, or OK button at the bottom of the WiFi settings page. Click it to save your new password. The router will restart — this usually takes 2 to 5 minutes, during which your internet will be down.

Once the router restarts and the lights stabilize, your WiFi network name (SSID) will still be the same, but the password will be the new one you entered. On each device you want to reconnect — phone, laptop, tablet, smart TV — forget the old WiFi network, then search for it again and enter your new password when prompted.

Key Takeaways

  • Log into your router's admin page by typing 192.168.0.1 or 192.168.100.1 into a web browser, using the default username admin and password motorola.
  • Navigate to the WiFi or Wireless settings section and locate the password field, which may be labeled Passphrase or Pre-Shared Key.
  • Your new password must be 8 to 63 characters long and can include letters, numbers, and special characters but not spaces.
  • After you save the new password, the router restarts and disconnects all devices; you will need to reconnect each one using the new password.
  • If you cannot remember your admin password, you can reset the router to factory defaults by holding the reset button for 10 to 15 seconds, which erases all custom settings.

What to do if you forgot your admin password

If you changed your router admin password in the past and no longer remember it, you cannot log into the settings page to change your WiFi password. The only way forward is to reset the router to factory settings, which returns the admin username and password to their defaults (admin and motorola).

To reset, locate the small Reset button on the back or bottom of your router — it is usually recessed so you cannot press it by accident. Use a paperclip or the tip of a pen to hold it down for 10 to 15 seconds while the router is powered on. The lights will blink and the router will restart. Once it comes back up, the admin credentials will be reset to default, and you can log in and change your WiFi password as described above.

Be aware that resetting also erases any other custom settings you made, such as port forwarding or parental controls. You will need to reconfigure those after the reset if you want them back.

Changing your password on a Comcast mobile app

Comcast offers a mobile app called Xfinity that lets you manage some router settings from your phone without logging into the admin page. Open the app, tap the WiFi icon or settings menu, and look for an option to change your WiFi password or network name.

Not all router models support password changes through the app, and the app sometimes lags behind the web interface in features. If the app does not show a password change option, use the web browser method instead. The app is most useful for restarting your router or checking which devices are connected.

Reconnecting devices after you change your password

After you change your WiFi password, each device must forget the old network and reconnect with the new password. On most phones and tablets, go to WiFi settings, find your network name in the list of saved networks, and select "Forget" or "Remove." Then search for the network again, select it, and enter your new password.

On Windows computers, open Settings > Network & Internet > WiFi > Manage Known Networks, find your network, and click "Forget." Then connect to it again with the new password. On Mac computers, hold Option and click the WiFi icon in the menu bar, find your network, and click "Forget." Reconnect the same way.

Smart devices like televisions, speakers, and thermostats may take longer to reconnect or may require you to remove them from your account and add them back. Check the device manual if you have trouble — some older devices have limited WiFi password options and may not accept special characters.

Frequently Asked Questions

What is the default Comcast WiFi password?

Comcast does not set a single default password for all customers. When your gateway is installed, Comcast assigns a unique password printed on a sticker attached to the device. If you have lost that sticker, you can find the password by logging into the router admin page (192.168.0.1) with the default admin credentials, or by calling Comcast customer service with proof of account ownership.

Can I change my WiFi password without logging into the router?

The Comcast Xfinity mobile app may allow password changes on some router models, but the web browser method through 192.168.0.1 is the most reliable way. If you do not have access to either method, contact Comcast customer service and they can change it for you over the phone, though they may charge a fee for this service.

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 needed to connect to your network. If your speed seems slower after the change, the issue is likely something else — try restarting the router or checking whether too many devices are connected.

How often should I change my WiFi password?

There is no set rule, but changing it once or twice a year is reasonable if you want to prevent unauthorized access. If you suspect someone has your password or if you have not changed it in several years, changing it is a good security practice. You do not need to change it more frequently than that unless your household situation changes significantly.

What if my router does not have a reset button?

Some newer Comcast gateways do not have a physical reset button. If yours does not, you can reset it through the admin page by looking for a "Restore Factory Settings" or "Reset" option in the advanced settings menu. Alternatively, unplug the router for 30 seconds, plug it back in, and hold down the power button for 10 seconds — this performs a soft reset on some models.