Where to find your Arris router credentials

Your Arris router username and password are printed on a sticker attached to the device itself — usually on the back or bottom. Look for a label that says "Admin Username" and "Admin Password" or sometimes just "Username" and "Password". The default username is almost always admin, and the default password is either motorola or admin, depending on your model.

If the sticker is missing, faded, or illegible, you have two other places to check: the documentation that came with your router (often in a folder or envelope with your modem paperwork), or the Arris support website, where you can search by your specific model number.

Your model number appears on the same sticker as your credentials. It usually starts with "SB" (like SB6121) or "MG" (like MG7550). Write this down — you will need it if you have to look up your defaults online.

Key Takeaways

  • The default username for almost all Arris routers is admin, printed on the sticker on the back or bottom of the device.
  • The default password is either motorola or admin, and this information is also on the device sticker.
  • If your sticker is unreadable, check the original documentation that came with your router or search the Arris website using your model number.
  • Your model number (starting with SB or MG) is on the same sticker and helps you find the correct defaults if they differ from the standard ones.
  • If you changed the password after setup and cannot remember it, you will need to factory reset the router, which erases all your settings.

Checking the sticker on your device

Turn off your router and flip it over or look at the back panel. The sticker is usually white or silver and contains several rows of text. Look specifically for lines labeled "Admin Username" and "Admin Password" — these are the credentials you need to log into the router's settings page.

If the sticker is there but hard to read, try taking a photo with your phone's camera and zooming in on the image. Sometimes the contrast is easier to see on a screen than on the physical sticker. If the sticker is completely missing or the text has worn away, move to the next section.

Finding credentials in your router documentation

Check any paperwork that came with your router when you first received it. This might be in a folder, an envelope, or a separate instruction booklet. The default username and password are often printed on a quick-start guide or on the back of the box itself.

If you no longer have the physical documentation, contact your internet service provider — they may have a copy on file or can tell you the defaults for your specific model. Many providers (like Comcast, Charter, or Cox) have their own versions of Arris routers and keep records of the standard credentials.

Looking up defaults by model number on Arris's website

Go to the Arris support website and use the search bar to find your router model. Enter the model number (the one starting with SB or MG from your sticker) and look for documentation or a support page for that model. Many product pages list the default username and password in a specifications section or in the user manual PDF.

If you cannot find the information on the main support page, try downloading the user manual for your model — it almost always contains a section on default credentials. The manual is usually available as a PDF link on the product page.

What to do if you changed your password and forgot it

If you set up your router yourself and changed the password after installation, and you cannot remember what you changed it to, you will need to perform a factory reset. This erases all your custom settings and returns the router to its original state with the default username and password active again.

To factory reset an Arris router, locate the small reset button (usually recessed into the device 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 flash and the router will restart. Once it finishes restarting, the default credentials will be active again.

After the reset, you can log back in with the default username and password, and then change the password to something you will remember. Write the new password down in a safe place, or use a password manager to store it.

Logging in with your credentials

Open a web browser on a device connected to your router (by WiFi or ethernet). Type 192.168.0.1 or 192.168.100.1 into the address bar and press Enter. A login page should appear asking for your username and password.

Enter admin as the username and either motorola or admin as the password (try motorola first, as it is more common). If neither password works, go back and double-check the sticker on your router — your model may use different defaults.

Frequently Asked Questions

What if the default password does not work?

Double-check that you are typing it correctly — passwords are case-sensitive. If motorola and admin both fail, the previous owner may have changed the password. Your only option is a factory reset using the recessed button on the back of the router, which will restore the defaults.

Can I find my password if I only have the model number?

Yes. Search for your model number on the Arris website or read the user manual PDF for that model. The manual always lists the default username and password in the setup or specifications section.

Is it safe to use the default password?

No. Once you log in with the default credentials, change the password to something unique and strong. Default passwords are publicly known, so anyone on your network could access your router settings if you leave them unchanged.

What if I cannot find a sticker or documentation for my Arris router?

Contact your internet service provider — they issued the router and have records of the model and its default credentials. You can also call Arris customer support with your model number, and they can tell you the defaults for that specific device.

Will factory reset delete my internet connection?

No. A factory reset only erases the router's settings and returns it to defaults. Your internet service provider's connection information is stored separately, and you will need to set up your WiFi network name and password again after the reset.