How to Change the WiFi Password on Technicolor TC8715D Cable Modem

How to Change the Wi-Fi Password on Technicolor TC8715D Cable Modem

  1. Connect to the modem: Connect a computer to the Technicolor TC8715D cable modem using an Ethernet cable.
  2. Open a web browser: Open a web browser on the computer and enter the default IP address of the modem, which is
  3. Login to the modem: Enter the default username and password, which is “admin” and “password” respectively, and click “Login”.
  4. Go to the Wi-Fi settings: Click on “Wi-Fi” in the top navigation bar and then select “Wi-Fi Configuration” from the drop-down menu.
  5. Change the Wi-Fi password: In the “Wi-Fi Configuration” section, locate the “Password” field and enter the new password for the Wi-Fi network. Make sure to use a strong password for security reasons.
  6. Save the changes: After entering the new password, click “Save” to apply the changes.
  7. Verify the changes: Verify the changes by connecting a device to the Wi-Fi network and entering the new password.

It is important to keep your Wi-Fi network secure by changing the password regularly. The above steps provide a straightforward guide on how to change the Wi-Fi password on the Technicolor TC8715D cable modem.

How to Activate Technicolor TC8715D

Activating your Technicolor TC8715D Cable Modem with internet service can be done in a few simple steps. Here is a step-by-step guide to help you get started:

  1. Connect the modem to your computer or laptop using an Ethernet cable.
  2. Open your web browser and enter the default IP address for your modem in the address bar. The default IP address for the Technicolor TC8715D is usually
  3. Enter the default username and password for the modem. The default username is “admin” and the default password is “password”.
  4. Once you are logged into the modem’s web interface, locate the “Internet” or “WAN” section.
  5. In the Internet section, select the option to “Activate” or “Setup” your modem.
  6. Follow the on-screen instructions to enter your internet service provider (ISP) information, such as the username and password provided by your ISP.
  7. Save your changes and wait for the modem to restart.
  8. Once the modem has restarted, check if the internet connection is working by visiting a website or running a network diagnostic tool.
  9. If you encounter any issues during the activation process, contact your internet service provider for assistance.

These are the basic steps to activate your Technicolor TC8715D Cable Modem with internet service. If you have any questions or concerns, it is best to consult the modem’s user manual or contact your internet service provider for further assistance.

How to Factory Reset Technicolor TC8715D

Factory resetting your modem is an important tool to have in your repertoire as it can make troubleshooting much easier, and fix a large number of common networking issues. Whether you just forgot your WiFi password or are just looking to solve an unknown problem, doing a quick reset is one of the first steps to take in correcting what may be wrong with your network.

  1. Make sure your TC8715’s plugged in to the power cable and is fully booted up.
  2. Locate the reset button on the back of your modem where all the other ports are. You’ll need a small pen cartridge or a paper clip.
  3. Press in the reset button for 30 seconds with your pen or paper clip and then allow your modem to reboot and reset itself for 5 minutes.
  4. After your modem has rebooted, you should be able to use the default WiFi credentials listed on the sticker on your modem to connect.

How to Change Your WiFi Password

Technicolor TC8715D WiFi Login

Logging into your Technicolor TC8715D is a quick process that results in you being able to adjust wireless settings for your modem, security settings & how your modem interacts with the reset of your network. We recommend knowing how to log in, since it would be hard to change your WiFi network name and password to a custom one, which leaves you vulnerable to malicious attacks and other security risks. To log in, you’ll need a computer and Ethernet cable or just a mobile device if you are able to currently still connect to your wireless network.

username and password for technicolor router tc8715d

  1. Open your web browser (e.g. Chrome, Firefox, Opera or any other browser except Microsoft Edge/Internet Explorer)
  2. Type (the default IP to access the admin interface) in the address bar of your internet browser to access the router’s web-based user interface.
  3. You should see 2 text fields where you can enter a username and a password.
  4. The default username and password for Technicolor router TC8715D is as follows:
    • Username: admin
    • Password: password
  5. Enter the username & password, hit “Enter” and now you should see the control panel of your router.
    • Note: if entering the username and password did not work, try a factory reset with the coaxial cable disconnected and then give it another go with the default credentials before reconnecting your coax.

Once you’ve logged into the settings admin panel of your TC8715D, next head over to the section with a name related to Wireless or WiFi settings. This will bring you to the WiFi settings panel.

In the WiFi settings panel, you’re looking for 2 different fields:

  • Network Name (SSID)
  • Password / Pre-Shared Key / Key

Network name is your WiFi network name that will show up on your network list when you go to connect to a network on your wireless devices. The network password will be the password you’ll enter when you connect to that network. Set these both to your custom name and network password, and then make sure to hit save to preserve your settings.

Did we answer all your questions about the Technicolor TC8715D Cable Modem Router? Let us know in the comments, or leave your own questions for our technicians to answer!

2 thoughts on “Technicolor TC8715D Cable Modem Product Manual

  1. David Brenneman says:

    No this didn’t help. For whatever reason Spectrum put TWO of these modem’s on my friend’s ‘system’. There’s no status lights on either modem yet somehow they are working.
    If the default WIFI passwords are changed at all, they get disabled by Spectrum evidently. One of the two modem’s Spectrum ZIP TIED a Netgear WIFI modem to in order to give it WIFI?? The modem HAS WIFI built into it? This is the WORST setup I have ever witnessed in 30+ years of being in IT.

    1. ModemGuides says:

      Hi David!

      That sounds like a mess! In situations like this, we usually recommend starting from scratch by unplugging everything (and removing the zip ties) and starting fresh. It will likely require a phone call to Spectrum so that they can tell you which of the 2 modems is active (there should only be one). Then you should probably factory reset the devices that will be used going forward. You can try to log into the Technicolor modem to disable the built-in wifi in order to use the Netgear router’s wifi instead, however be aware that Spectrum’s firmware will often prevent you from changing that setting and other wifi settings.

      I don’t generally recommend a modem-router combo for Spectrum because it tends to be harder to install correctly. There are often issues with provisioning Spectrum’s firmware on customer-owned devices, especially if it’s a modem and router combo.

      Good luck!

      – MG Support

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