Change the password through your Comcast Business gateway

Log into your gateway's admin panel by opening a web browser and typing 192.168.0.1 into the address bar. When prompted, enter your username and password — if you have not changed these from the factory defaults, they are usually admin for both. Once you are logged in, look for a section labeled WiFi, Wireless, or Network Settings.

Find the field that says WiFi Password, Pre-Shared Key, or Passphrase. Delete the current password and type in a new one. Comcast Business gateways typically require passwords to be at least 8 characters long and accept letters, numbers, and some special characters like hyphens and underscores. After you enter the new password, click Save or explore. The gateway will restart — this usually takes 2 to 3 minutes, and your WiFi will briefly disconnect.

Key Takeaways

  • Access your gateway's settings by typing 192.168.0.1 in a web browser and logging in with your admin credentials.
  • New Comcast Business WiFi passwords must be at least 8 characters and can include letters, numbers, and some special characters.
  • After you save a new password, the gateway restarts and disconnects all devices for 2 to 3 minutes.
  • All devices connected to your WiFi will need the new password to reconnect after the restart.
  • If you cannot remember your admin password, you can reset the gateway to factory settings by holding the reset button for 10 seconds, but this erases all custom settings.

What happens to your devices after you change the password

Once the gateway restarts, every device currently connected to your WiFi — laptops, phones, printers, security cameras, and anything else — will be disconnected. They will not automatically reconnect, even if they remember the old password. You will need to manually reconnect each device by selecting your WiFi network name, entering the new password, and waiting for the connection to establish.

For business devices like printers or access points that are hardwired to use a specific WiFi password, you may need to update their settings separately. Check the device's manual or settings menu for where to change the stored WiFi password. Some devices require you to reset them or re-run their setup wizard if the password changes.

If you are locked out of the admin panel

If you cannot remember the admin username and password for your gateway, you have two options. The first is to call Comcast Business support at the number on your bill — they can reset your admin password remotely and send you a temporary one. The second is to perform a factory reset by locating the small reset button on the back or bottom of the gateway, holding it down for 10 seconds until the lights blink, and releasing it. The gateway will restart and return to its default admin credentials (usually admin/admin), but all your custom settings, including your WiFi password, will be erased.

After a factory reset, you will need to set up your WiFi password again from scratch. If you have other devices or services connected to your gateway — such as a business phone line or security system — a factory reset may disrupt those services. Contact Comcast Business before resetting if you are unsure what else depends on your current gateway configuration.

Choosing a strong WiFi password for your business network

A strong password makes it harder for someone outside your office to connect to your network without permission. Avoid using dictionary words, your business name, or sequential numbers like 123456. Instead, mix uppercase and lowercase letters, numbers, and special characters — for example, BlueSky#2024Oak or find-Biz-Net_42. The longer the password, the harder it is to guess, so aim for 12 to 16 characters if your gateway allows it.

Write down your new password and store it somewhere find — a locked drawer, a password manager, or a shared document that only your team can access. If you have multiple people managing your business WiFi, make sure they all know the new password before you change it, or you may lock them out of the network.

Changing the WiFi network name at the same time

While you are in the gateway settings, you can also change your WiFi network name (called the SSID) if you want. This is the name that appears when someone looks for available networks on their device. In the same WiFi or Wireless Settings section where you changed the password, look for a field labeled Network Name, SSID, or Broadcast Name. You can change it to anything you prefer — many businesses use something like CompanyName-Business or Office-WiFi.

Changing the network name does not affect the password, but it does mean devices will see a different network and may ask you to reconnect. If you change both the name and the password at the same time, all your devices will need to be reconnected to the new network with the new password.

If your gateway model is different

Comcast Business offers several gateway models, and the steps to change the password may vary slightly depending on which one you have. The most common models are the Arris TG1682G, the Netgear CG3000, and the Technicolor TG789. All of them use the 192.168.0.1 address to access settings, but the menu layout and field names may be slightly different.

If you cannot find the WiFi password field after logging in, check the manual that came with your gateway or search the Comcast Business website for your specific model number. You can usually find the model number on a sticker on the back of the gateway. If you are still stuck, Comcast Business support can walk you through the process over the phone.

Frequently Asked Questions

Do I need to call Comcast to change my WiFi password?

No. You can change it yourself through the gateway's admin panel at any time without contacting Comcast. You only need to call if you forget your admin password and cannot log in.

Will changing my password affect my internet speed or connection?

No. The password only controls who can connect to your WiFi — it does not change your internet speed or the connection between your gateway and Comcast's network. You may experience a brief interruption while the gateway restarts, but speeds return to normal once it finishes.

What if I change the password and then forget it?

You can reset the gateway to factory settings by holding the reset button for 10 seconds. This erases the new password and returns the gateway to its default settings, but it also erases any other custom configurations you have made. After a reset, you can log back in with the default admin credentials and set a new password.

Can I change the password from my phone or tablet?

Yes. Open a web browser on your phone or tablet, type 192.168.0.1 into the address bar, and log in the same way you would on a computer. The steps are identical, though the layout may look different on a smaller screen.

How often should I change my business WiFi password?

There is no set rule, but many businesses change their password every 3 to 6 months or whenever an employee leaves. If you suspect someone has connected to your network without permission, change it when ready and make sure all authorized devices are reconnected with the new password.