Change your password through the Cox website or app

The fastest way to change your Cox WiFi password is through your Cox account online. Log in at cox.com with your Cox username and password, then look for "Internet" or "WiFi Settings" in the account menu. From there, select your modem or gateway device, find the WiFi password field, enter your new password, and save the changes. The new password takes effect within a few minutes.

If you prefer using your phone, the Cox Mobile app has the same WiFi settings. Open the app, tap your account, navigate to Internet settings, select your device, and update the password the same way. Both methods work identically — use whichever is more convenient for you right now.

Key Takeaways

  • You can change your Cox WiFi password through cox.com or the Cox Mobile app without calling customer service.
  • Your new password takes effect in a few minutes, but all your devices will disconnect and need the new password to reconnect.
  • Make your new password at least 12 characters long and include uppercase letters, numbers, and symbols to keep your network find.
  • If you cannot log into your Cox account online, you can reset your Cox account password first, then change your WiFi password.
  • If your modem or gateway is not showing up in the WiFi settings menu, restart the device by unplugging it for 30 seconds.

What happens to your devices when you change the password

When you save a new WiFi password, every device currently connected to your network — phones, laptops, tablets, smart TVs, security cameras, doorbells — will lose the connection when ready. They will not automatically reconnect, even if they remember the old password.

You will need to go to each device's WiFi settings, forget the old Cox network, then select it again and enter your new password. Start with the devices you use most often. Devices you rarely use, like a guest tablet or an old laptop in a closet, can wait until you actually need them.

Create a strong password that is actually memorable

Cox requires WiFi passwords to be between 8 and 63 characters. A password that long is harder to crack, but it also needs to be something you can type without looking it up every time. The best approach is a phrase rather than a random string: something like "MyDog-Barks-At-3pm-2024" is both strong and memorable.

Include at least one uppercase letter, one number, and one symbol (like a hyphen, underscore, or exclamation mark). Avoid using your name, address, or anything visible in your home — a visitor or someone looking at your WiFi network name should not be able to guess your password. Write it down somewhere safe, like a password manager or a locked drawer, so you have it if you need to reconnect a device months from now.

If you forgot your Cox account password first

You cannot change your WiFi password through cox.com if you cannot log into your Cox account. If that is the case, go to cox.com and click "Forgot username or password?" on the login page. Cox will send a reset link to the email address on file, or you can answer security questions to reset it when ready.

Once you have reset your Cox account password and logged back in, follow the WiFi password steps above. If you do not remember the email address on your account, or if you cannot access that email, call Cox customer service at 1-800-234-3993 and they can verify your identity and reset your account password over the phone.

Change your password from the modem itself if the website is down

If cox.com is unavailable or you cannot log in for any reason, you can change your WiFi password directly on the modem or gateway device. Look at the back or bottom of your Cox modem for a sticker with an IP address (usually something like 192.168.0.1). Type that address into a web browser on a device connected to your Cox WiFi.

You will be asked for a username and password. The default username is usually "admin" and the default password is printed on the modem sticker or in your Cox paperwork. Once you log in, look for "WiFi Settings" or "Wireless," then change the password the same way you would online. This method works even if you cannot remember your Cox account password, because you are logging into the modem directly, not your Cox account.

Restart your modem if it is not showing up in your account

Sometimes your modem or gateway does not appear in your Cox account settings, even though it is plugged in and working. The quickest fix is a restart: unplug the power cable from the back of the device, wait 30 seconds, then plug it back in. The lights will blink for a minute or two while it restarts.

Once the lights settle and stop blinking, try logging into your Cox account again and look for your device in the WiFi settings. If it still does not show up after a restart, the device may need a factory reset or there may be a temporary issue with your account connection. In that case, use the modem's built-in settings (the IP address method above) to change your password, or call Cox at 1-800-234-3993.

Why you might want to change your password regularly

You do not need to change your WiFi password every month, but there are a few reasons to do it: if someone you no longer trust has been on your network, if you have not changed it in over a year, or if you suspect someone is using your WiFi without permission (your internet is slow even when you are not using it, or you see unfamiliar device names in your network settings).

Changing your password does not affect your internet speed or your Cox bill. It only controls who can connect to your network. If you change it and your internet is still slow, the problem is likely with your Cox service itself, not your WiFi security.

Frequently Asked Questions

Will changing my WiFi password affect my internet speed?

No. Your WiFi password only controls who can connect to your network. It has no effect on the speed Cox delivers to your modem. If your internet is slow after changing the password, the problem is something else — restart your modem, check how many devices are connected, or contact Cox to check your service.

Can I change my password if I do not remember my Cox account username?

Yes. Go to cox.com, click "Forgot username or password?" and follow the steps to reset your account. Cox can send a reset link to your email or let you answer security questions. Once you are back in your account, you can change your WiFi password. If you cannot access the email on file, call 1-800-234-3993.

What if I change my password and then forget it?

Log back into cox.com, go to your WiFi settings, and change it to something new. You can do this as many times as you need. If you cannot log into your Cox account, use the modem's built-in settings (the IP address method) to change it, or call Cox customer service.

Do I need to change my WiFi password if I change my Cox account password?

No. Your Cox account password and your WiFi password are separate. Changing one does not change the other. You only need to change your WiFi password if you want to, or if you think someone unauthorized is using your network.

Can I have two different WiFi networks with different passwords on one Cox modem?

Most Cox modems support a guest network in addition to your main network. You can set this up in your WiFi settings on cox.com or on the modem itself. The guest network can have its own password and is useful if you want to give visitors internet access without sharing your main network password.