HOW TO GUIDES

How to Self-Install & Setup a Modem with Optimum Cable

Owning your modem with Optimum can save you a ton of money in the long term since they charge anywhere from $4.95/month to $9.95/month, just to use their leased modem. For most Optimum modem models, you could buy one and it will have paid for itself within less than 3 years. We feel that by that logic, there’s really no reason you should still be renting a modem.

Some people have mentioned to our support representatives that they don’t feel comfortable setting up their modem on their own as they don’t consider themselves to be very technically savvy. Luckily, in recent years companies have made doing a self-installation for your new cable modem much easier. This allows you to do the activation from home, and in most cases without calling out a technician to help you. We know that starting up new service or pulling the plug on renting your modem and trading it for a non-rental version can be a plunge, so we wanted to make sure you have all the information you need to get started!

How to Activate Your Modem with Optimum Cable

Activating your modem with Optimum is super quick and easy. You’ll need to set aside around 30 minutes for most activations to ensure you’re not feeling rushed.

  1. Plug in your modem to the power supply cable, then plug the power supply cable into the wall.
  2. Plug the coaxial cable into the wall, and then screw the other end into the coaxial port on the back of the modem.
  3. Wait 5 minutes for your modem to fully boot up. If your modem has built-in wireless, you’ll know your device is fully powered on once the wireless lights come on.
  4. Connect an ethernet cable into the back of your modem and then plug in the other end into your computer.
  5. Open a web browser (such as Chrome, Firefox or Safari) and type install.optimum.com into the URL web address bar at the top of the screen, then hit enter.
  6. To activate your modem you’ll need your 13-digit account number to register online, which you can find on your Optimum bill, a receipt from the Optimum store as well as several other places.
  7. Follow the on-screen steps to set up and activate your new modem.
  8. After set up is complete, you can now disconnect the ethernet cable from your computer or laptop and connect it into a wireless router if you’re using one for your wireless service.

Congratulations on activating your cable modem with Optimum service!

Best Modems for Optimum Cable

    Arris TM1602A: High-Speed DOCSIS 3.0 Cable Modem with Advanced VoIP Support

    In stock

    SKU: CMD042B-LN-FBA
    Weight 2 lbs
    Dimensions 9 × 7 × 3 in
    Model Number

    TM1602A

    Ethernet Ports

    1-Port

    Features

    Easy-Installation, For Gaming, For Home, Telephone / Voice Enabled, Video Streaming

    Brand

    Arris

    Contents

    Ethernet Cable, Modem, Power Cable

    DOCSIS Version

    DOCSIS 3.0

    Interface

    Cable Modem

    DOCSIS Channels

    16 x 4

    Compatible Providers

    Charter Spectrum, Cablevision, Optimum

    Internet Speed

    Up to 10 Mbps, Up to 20 Mbps, Up to 500 Mbps, 40 Mbps – 60 Mbps, 100 Mbps -140 Mbps, 150 Mbps – 200 Mbps, 250 Mbps – 300 Mbps

    Color
    Wired Download Speeds

    640 Mbps

    Arris TM822A Touchstone Telephony Cable Modem

    In stock

    $39.99
    SKU: CMD050B-LN-FBA
    Weight 1 lbs
    Dimensions 9 × 6 × 3 in
    Brand

    Arris

    Model Number

    TM822A

    Condition

    Grade A – Certified Renewed

    Contents

    Ethernet Cable, Modem, Power Cable

    Compatible Providers

    Optimum Cable

    DOCSIS Channels

    8 x 4

    DOCSIS Version

    DOCSIS 3.0

    Features

    Telephone / Voice Enabled

    Interface

    Cable Modem

    Ethernet Ports

    1-Port

    Compatible Providers

    Optimum

    Color
    Return Policy

    90-Days

    Arris TM3402 32×8/2×2 DOCSIS 3.1 Telephony Cable Modem

    In stock

    SKU: CMR336B-LN-FBA
    Weight 2 lbs
    Dimensions 9 × 6 × 3 in
    Brand

    Arris

    Color
    DOCSIS Channels

    32 x 8

    Compatible Providers

    Optimum

    DOCSIS Version

    DOCSIS 3.1

    Ethernet Ports

    4-Port

    Features

    Easy-Installation, For Home, Gigabit Compatible, Telephone / Voice Enabled, Video Streaming

    Interface

    Cable Modem

    Model Number

    TM3402

    Contents

    Ethernet Cable, Modem, Power Cable, Quick-Install Guide Online

    Arris TM804G DOCSIS 3.0 Phone Cable Modem

    In stock

    SKU: CMR316B-LN-FBA
    Brand

    Arris

    Color
    Contents

    Ethernet Cable, Modem, Power Cable

    Condition

    Grade A – Certified Renewed

    Compatible Providers

    Mediacom, Sparklight (CableOne), Optimum

    Interface

    Cable Modem

    Ethernet Ports

    1-Port

    DOCSIS Channels

    8 x 4

    DOCSIS Version

    DOCSIS 3.0

    Features

    Easy-Installation, For Business, For Home, Telephone / Voice Enabled, Video Streaming

    Model Number

    TM804G

    How to Reset Your Optimum Modem

    Resetting your Optimum modem is an important skill to know since it’s used in so many situations. If you are doing any troubleshooting with your provider, forgot your WiFi password (if WiFi enabled) or you’re just trying to clear up an issue with your network, knowing how to reset your Optimum modem is an ideal first step. Here’s our easy guide on how to do it in less than 10 minutes:

    1. Plug in your modem to the power supply, then plug the power supply into the wall outlet.
    2. locate the reset button on the back of your modem where all the ports are.
    3. Press and hold down the reset button for 30 seconds with a paperclip or toothpick.
    4. After 30 seconds, release the reset button, then wait 5 minutes for your modem to power cycle and reset.
    Arris TM1602A High Speed Gateway Telephony Modem DOCSIS 3.0

    How to Log Into Your Optimum Modem

    Logging into your Optimum cable modem allows you to adjust the settings, control WiFi credentials (if your modem is wireless-enabled) and much more. Knowing how to do this is important for some troubleshooting steps, enabling bridge mode, and changing your WiFi password (if applicable) among other important features.

    For most users, this is something that you really only mess with occasionally, but is still important to know how to do. Here’s our quick, easy guide on logging into your Optimum modem:

    1. Connect your modem to the power supply and then plug the power supply into the outlet. Allow 5 minutes for your modem to fully boot up.
    2. Connect one end of an Ethernet cable into the back of your Optimum modem, and the other end into your computer.
      • If your modem has built-in WiFi, you can connect to the wireless network instead, if that’s easier. Most Optimum modems do not have WiFi built-in though, and Ethernet is much more reliable.
    3. Open a web browser such as Chrome, Firefox, or Safari (not Microsoft Edge or Internet Explorer).
    4. Type the modem’s IP address into the URL / Address bar at the top of your browser window.
      • Most Optimum compatible modems use 192.168.0.1 or 192.168.100.1 as their IP address, but if not it will be listed somewhere on the sticker on the bottom of your modem.
    5. Once you’ve typed in the IP address, press enter and it should load a page with either the manufacturer logo of the company that makes your modem, OR it will have an Optimum logo. At this point, most models will request a username and password to enter the settings panel. Most of the time, the credentials are as shown below, but sometimes they are listed on the modem’s sticker near the IP address.
      • username: admin
      • password: password
    6. Enter your login credentials then click submit.

    How to Cancel Optimum Cable Internet Service

    You can either call the customer service line or go online and find the account management section of the website to cancel your Optimum cable internet service. You might be asked for the reason for the cancellation as well as any other details required to complete the cancellation. Additionally, based on the conditions of your service agreement, you might be required to pay an early termination fee. Before terminating your service, it’s a good idea to review your agreement’s terms and any potential fees.

    Comparing Optimum Internet Service Packages

    As an Optimum customer, you have the freedom to use your own modem. Using your own modem not only saves on rental costs, but also allows you to choose a device that best fits your specific needs. We have compiled a list of modems that are compatible with Optimum’s services. Each modem has been paired with an internet package based on its maximum potential download speed. This easy-to-read table will help guide you in choosing the best modem for your Optimum internet package, based on factors such as download speed, telephone compatibility, and customer ratings. Please note, none of these modems have built-in WiFi, so if you need WiFi, you’ll need to purchase a separate wireless router. Explore the options below and select the modem that’s right for you.

    Internet Package Speed Features Best Compatible Modem Download Speed* Telephone Wifi DOCSIS Channels Customer Rating
    Optimum 100 Up to 100 Mbps Best for light internet use Arris TM822A 343 Mbps Yes No 3.0 8×4 4.82/5 (56 reviews)
    Optimum 200 Up to 200 Mbps Suitable for moderate use Arris TM822A 343 Mbps Yes No 3.0 8×4 4.82/5 (56 reviews)
    Optimum 300 Up to 300 Mbps Ideal for multiple devices Arris TM1602A 640 Mbps Yes No 3.0 16×4 4.98/5 (48 reviews)
    Optimum 400 Up to 400 Mbps For heavy usage and gaming Arris TM1602A 640 Mbps Yes No 3.0 16×4 4.98/5 (48 reviews)
    Optimum 500 Up to 500 Mbps For multi-device streaming Arris TM1602A 640 Mbps Yes No 3.0 16×4 4.98/5 (48 reviews)
    Optimum 1 Gig Up to 940 Mbps For high-speed requirements Arris TM3402 2.5 Gbps Yes No 3.1 32×8 No rating

    Please note:

    • The download speed in the table refers to the max speeds the modem technology can accommodate. Actual speeds may vary based on configuration and other factors.
    • None of these modems have built-in WiFi. If you need WiFi, you’ll need to purchase a separate wireless router.
    • Telephone indicates whether the modem supports Optimum’s Voice service.
    • The Customer Rating is based on customer reviews.

    For the most accurate information, it’s always a good idea to check Optimum’s official website or contact their customer service.

    Frequently Asked Questions

    1. Can owning my own modem with Optimum save me money? Yes, renting a modem from Optimum can cost between $4.95/month to $9.95/month. Buying your own modem can pay for itself within less than 3 years.
    2. How can I activate my modem with Optimum Cable? You can activate your modem by following the detailed steps in the article above. They outline the step-by-step process for activating your Optimum Cable modem.
    3. What if I’m not tech-savvy, can I still set up the modem on my own? Yes, modem self-installation has been made simpler by companies in recent years, and Optimum Cable is no exception. Just follow the step-by-step instructions provided and you should be able to set it up without the need for a technician.
    4. How can I reset my Optimum modem? You can reset your Optimum modem by following the steps in the article above. It’s a simple process that requires a paperclip or toothpick.
    5. How can I log into my Optimum modem? You can log into your Optimum modem by following the instructions in the article above. Logging in allows you to adjust settings, control WiFi credentials, and more.
    6. How can I cancel my Optimum Cable Internet Service? You can cancel your service either by calling the customer service line or through the account management section on the Optimum website. Note that you may need to pay an early termination fee depending on the terms of your service agreement.
    7. Is the Arris TM1602A High Speed Gateway Telephony Modem DOCSIS 3.0 compatible with Optimum Cable? Yes, the Arris TM1602A High Speed Gateway Telephony Modem DOCSIS 3.0 is compatible with Optimum Cable service. You can follow the same steps for setting up and activating this modem.
    8. Can I use my modem’s built-in wireless during setup? If your modem has built-in wireless, you can use it during the setup process. However, an Ethernet connection is often more reliable for the initial setup.

    Did we answer all your questions about the How to Self-Install & Setup a Modem with Optimum Cable? Let us know in the comments, or leave your own questions for our technicians to answer!

    2 thoughts on “How to Self-Install & Setup a Modem with Optimum Cable

    1. Marietta Schrader says:

      Where do I find the Network security Key on my ARRIS Model TM1602A?

      1. ModemGuides says:

        Hi Marietta,

        This model does not have built-in WiFi, so there is no network security key for this device. If you’re using a wireless router alongside it, you can use the network security key or pre-shared key printed on that device. Otherwise, you’ll need to connect with the ethernet cable.

        Hope that helps!

        ModemGuides Support

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