Finding Your Modem's Login Page

To log into your Comcast modem, open a web browser on any device connected to your network and type 192.168.0.1 into the address bar, then press Enter. This IP address takes you directly to your modem's control panel. If that address does not work, try 192.168.100.1 — Comcast uses both depending on your modem model.

You should see a login screen with fields for a username and password. If you see a blank page or an error message, make sure you are connected to your Comcast network (not a guest network or a different Wi-Fi), and try refreshing the page. If the page still does not load, restart your modem by unplugging it for 30 seconds, plugging it back in, and waiting two minutes for it to fully boot before trying again.

Key Takeaways

  • The default login address is 192.168.0.1 or 192.168.100.1, typed directly into your browser's address bar.
  • The default username is admin and the default password is motorola for most Comcast modems, though some use admin for both fields.
  • If you changed your password and cannot remember it, you can reset the modem to factory defaults by holding the reset button for 10 to 15 seconds, which erases all custom settings.
  • Once logged in, you can view your internet speed, connected devices, and signal strength, but most users do not need to change anything in the modem settings.

Default Username and Password

Comcast modems ship with a default username and password printed on a sticker on the back or bottom of the device. For most models, the username is admin and the password is motorola. Some newer models use admin for both the username and password field.

Check the sticker on your modem first — it will show you the exact credentials for your specific unit. If the sticker is worn or missing, try admin and motorola as your first attempt. If that does not work, try admin and admin. If neither combination works, your modem may have been reset by a previous owner or technician, and you will need to perform a factory reset.

What to Do If You Forgot Your Password

If you changed your modem password and no longer remember it, the only way to regain access is to reset the modem to its factory settings. Locate the small reset button on the back of your modem — it is usually recessed into the casing so you cannot press it by accident. Use a straightened paperclip or a ballpoint pen to press and hold the button for 10 to 15 seconds while the modem is powered on.

The modem will restart and return to its default username and password. This process erases any custom settings you made, including any password you created, so you will be back to the factory defaults listed on the sticker. After the reset, wait two to three minutes for the modem to fully restart before attempting to log in again.

What You Can See Once You Are Logged In

Once you log in, you will see a dashboard that displays your internet connection status, the speed your modem is currently delivering, and a list of all devices connected to your network. You can also view your signal levels and check whether your modem is in bridge mode or router mode — most Comcast modems act as both a modem and a router in one unit.

For most homeowners, there is nothing you need to change in these settings. The modem is configured by Comcast when it is activated, and changing settings without knowing what you are doing can disconnect your internet or create security problems. If a technician or your internet service provider has asked you to change a specific setting, they will walk you through the exact steps.

Common Login Problems and How to Fix Them

If you type the IP address and see a blank page or a "connection refused" error, your device may not be connected to your Comcast network. Disconnect from any guest network or other Wi-Fi and reconnect to your main Comcast network, then try the address again. If you are using a wired connection, make sure the ethernet cable is plugged firmly into both your device and the modem.

If the login page loads but your username and password do not work, double-check that you are typing them correctly — passwords are case-sensitive, meaning capital letters matter. If you are certain the credentials are correct, restart your modem by unplugging it for 30 seconds. If you still cannot log in after a restart, perform a factory reset using the reset button and use the default credentials from the sticker on the back of the modem.

When to Call Comcast Instead of Troubleshooting

If you can log into your modem but your internet is not working, the problem is usually not in the modem settings — it is with your connection to Comcast's network. In this case, restarting the modem (unplugging it for 30 seconds) solves the problem about half the time. If restarting does not restore your internet, contact Comcast customer service; they can check your account and connection from their end.

If you cannot reach the login page at all even after restarting, and you have confirmed you are on the correct network, your modem may have a hardware problem. Comcast can send a technician or replace the modem under your service agreement. Do not open the modem or try to repair it yourself — modems contain electrical components that can be dangerous.

Frequently Asked Questions

Can I log into my modem from my phone?

Yes, as long as your phone is connected to your Comcast Wi-Fi network. Open any web browser, type 192.168.0.1 into the address bar, and log in the same way you would on a computer. You may need to zoom in to read the text on a small screen.

Is it safe to change settings in my modem?

Most settings should not be changed unless a technician or Comcast support has specifically asked you to. Changing the wrong setting can disconnect your internet or create security issues. If you are unsure, leave the settings as they are.

What does bridge mode mean?

Bridge mode means your Comcast modem is acting only as a modem and passing the internet signal to a separate router you own. If you see bridge mode is off, your modem is also acting as your router. You do not need to change this unless you have a specific reason to use a different router.

Why does my modem keep asking me to log in?

If you are logged out every time you close the browser, that is normal — the modem does not stay logged in for security reasons. If you are being asked to log in while you are actively using the modem, restart it by unplugging it for 30 seconds. If the problem continues, perform a factory reset.