Where to find your Comcast router and what you need

Your Comcast router is the white or black box that came with your internet service — usually sitting near your modem or combined into one unit. To change your WiFi password, you need to log into the router's settings page using a web browser on any device connected to your network: a computer, phone, or tablet all work.

You will need two pieces of information before you start. The first is your router's IP address, which is almost always 192.168.0.1 or 192.168.100.1 — Comcast routers use one of these two. The second is your admin password, which Comcast sets to a default when your service is installed. If you have never changed it, the default is usually printed on a sticker on the back or bottom of the router itself, or on your service paperwork.

If you cannot find the default password, you can reset the router to factory settings by holding the reset button on the back for 10 to 15 seconds — but this will also erase any other settings you have changed, so try the printed password first.

Key Takeaways

  • Open a web browser and type your router's IP address (usually 192.168.0.1) to reach the login page.
  • Log in using the admin password printed on your router or in your Comcast paperwork.
  • Navigate to the WiFi or Wireless settings section and change the password to something you can remember.
  • Save your changes and reconnect your devices using the new password within a few minutes.
  • If you forget the new password later, you can always reset the router and start over.

Step 1: Open your router's settings page

On any device connected to your WiFi, open a web browser — Chrome, Safari, Firefox, or Edge all work. In the address bar at the top, type 192.168.0.1 and press Enter. If that does not load a page, try 192.168.100.1 instead.

You should see a login page asking for a username and password. The username is almost always admin. For the password, use the default password from the sticker on your router. Type both carefully and click the login button.

If you see an error message saying the password is wrong, double-check the sticker — some routers have similar-looking characters like 0 (zero) and O (letter O), or 1 (one) and l (lowercase L). If the sticker password still does not work, your password may have been changed before. In that case, you will need to reset the router using the reset button on the back.

Step 2: Find the WiFi password settings

Once you are logged in, you will see a dashboard or menu. Look for a section called WiFi, Wireless, Network, or SSID. Different Comcast router models arrange these differently, but they are usually near the top of the menu or in a left-side navigation bar.

Click on that section. You should see a page showing your current WiFi network name (called the SSID) and your current password. This is the page where you make the change.

Step 3: Change your password and save

Find the field labeled Password, WiFi Password, or Passphrase. Click in that field and delete the current password completely. Type in a new password that you will remember — it should be at least 8 characters long and can include numbers, letters, and symbols.

After you type the new password, look for a button labeled Save, explore, or OK. Click it. The router will process the change, which usually takes 30 seconds to 2 minutes. You may see a message saying the settings are being applied or that the router is restarting — this is normal.

Do not close the browser or unplug the router while it is saving. Once you see a confirmation message or the page returns to normal, the change is complete.

Step 4: Reconnect your devices to the new network

After the router finishes saving, your devices will lose their WiFi connection because the password has changed. On each device — your phone, computer, tablet, smart TV, or anything else connected to WiFi — you will need to forget the old network and reconnect with the new password.

On a phone or tablet, go to Settings, find WiFi, and look for your network name in the list. Tap it and select Forget or Remove. Then tap the network name again, enter your new password, and tap Connect. On a computer, do the same through your WiFi settings — right-click the network name and select Forget, then reconnect with the new password.

Devices that do not require a password — like some smart home devices or older printers — may reconnect automatically. If they do not, check their settings to see if they have a WiFi password field you need to update.

What to do if something goes wrong

If you cannot reach the router's settings page at all, make sure you are connected to the WiFi network you are trying to change. You cannot access the router settings over a different network. If you are on the right network and still cannot reach the page, try restarting your device and the router — unplug the router for 30 seconds, plug it back in, and wait 2 minutes for it to fully restart.

If you get locked out because you forgot the new password you just set, you can reset the router to factory settings. Hold the small reset button on the back of the router for 10 to 15 seconds using a paperclip or pen. The router will restart and return to its default password, which you can find on the sticker again. You will then need to repeat these steps to set a new password.

If the router will not save your changes at all, try using a different web browser or a different device. Sometimes browser cache or cookies interfere with the settings page. You can also try logging out and logging back in before making the change again.

Frequently Asked Questions

Can I change my WiFi password from my phone?

Yes. Open any web browser on your phone, type 192.168.0.1 in the address bar, and log in with your admin password. The steps are the same as on a computer. Make sure you are connected to your WiFi network when you do this, or you will not be able to reach the router settings.

What password should I use?

Use something at least 8 characters long that you can remember but others cannot easily guess. A mix of uppercase letters, lowercase letters, and numbers works well — for example, "BlueSky2024Home". Avoid using your name, address, or birthdate. Write it down somewhere safe in case you forget it later.

Will changing my password disconnect my devices?

Yes. After you save the new password, all your devices will lose their WiFi connection. You will need to reconnect each one by forgetting the old network and entering the new password. This usually takes a few minutes total across all your devices.

What if I see two WiFi networks with similar names?

Comcast routers often broadcast both a 2.4 GHz network and a 5 GHz network with similar names — one might end in "-2.4" or "-5G". When you change the password in the router settings, it changes both networks at the same time. You will need to reconnect to whichever one you normally use.

Do I need to change my password regularly?

There is no rule that says you must, but changing it once or twice a year is a reasonable practice if you want to make sure only people you have told the password to are using your network. If you suspect someone has your password, change it right away.