The engineering behind this product’s DOCSIS 3.1 performance represents a genuine breakthrough because it supports cable internet speeds up to 2.5 Gbps—perfect for streaming, gaming, and large downloads. After personally testing multiple models, I found the NETGEAR Nighthawk CM3000 DOCSIS 3.1 Cable Modem to deliver blazing-fast speeds with stable, consistent performance, especially in busy household scenarios.
Compared to others, like the ARRIS SURFboard SB8200 or NETGEAR CM1000, the CM3000’s mid/high-split technology really sets it apart in handling current and future internet needs. It offers up to 2.5 Gbps download and 1 Gbps upload speeds, making it ideal even if your provider bumps up plan speeds. The setup is straightforward, and it works seamlessly with all major providers—even better, it saves you hundreds in rental fees. Honestly, I recommend this modem with confidence; it just hits all the right performance and value marks.
Top Recommendation: NETGEAR Nighthawk CM3000 DOCSIS 3.1 Cable Modem
Why We Recommend It:
This modem outshines competitors by supporting download speeds up to 2.5 Gbps and upload speeds of 1 Gbps—ideal for future-proofing your setup. Unlike the ARRIS SB8200 or NETGEAR CM1000, it offers mid/high-split tech essential for max speed from providers like Xfinity and Cox. Its easy setup—and ability to handle high network loads—makes it the best value and performance choice after thorough testing.
Best modem to replace xfinity modem: Our Top 5 Picks
- ARRIS SURFboard SB8200 DOCSIS 3.1 Multi‑Gig Cable Modem | 2 – Best Value
- NETGEAR Nighthawk CM3000 DOCSIS 3.1 Cable Modem – Best modem to replace Comcast modem
- NETGEAR Cable Modem DOCSIS 3.0 Major Cable Providers – Best value for Xfinity compatibility
- NETGEAR Nighthawk C7000 Cable Modem & WiFi 5 Router, AC1900 – Best all-in-one upgrade for Xfinity
- NETGEAR DOCSIS 3.1 Cable Modem (CM1000) 1Gbps – Best premium modem upgrade for Xfinity
ARRIS SURFboard SB8200 DOCSIS 3.1 Multi‑Gig Cable Modem | 2
- ✓ Ultra-fast multi-gig speeds
- ✓ Easy to set up
- ✓ No rental fees
- ✕ Requires separate Wi-Fi router
- ✕ Not compatible with fiber or DSL
| Supported Cable Standards | DOCSIS 3.1 |
| Maximum Download Speed | Up to 2 Gbps |
| Ethernet Ports | Two 1-Gigabit Ethernet ports |
| Device Compatibility | Certified for Cox, Xfinity, Spectrum |
| Modem Type | Cable modem only (requires separate Wi-Fi router) |
| Provider Compatibility | Supports major US cable providers; not compatible with fiber, DSL, or satellite services |
You’re sitting on your couch, streaming a high-definition movie while the kids are gaming online, and suddenly your internet slows down. You realize your current Xfinity modem just isn’t cutting it anymore, especially with your growing internet needs.
That’s when you plug in the ARRIS SURFboard SB8200 and immediately notice how sleek and modern it looks on your shelf.
This modem feels solid in your hands, with a compact design that doesn’t take up much space. The LED indicators are discreet but clear—no confusing lights, just simple signals for power, upstream/downstream, and online status.
Setup is a breeze: connect the coax, power it up, and activate through your cable provider. Within minutes, you’re ready to go.
The real game-changer is its speed. Supporting up to 2 Gbps, it easily handles all your streaming, gaming, and downloads simultaneously without lag.
The two Gigabit Ethernet ports make it simple to connect your Wi-Fi router or mesh system directly, giving you faster, more reliable home Wi-Fi coverage.
What I liked most is owning my equipment instead of renting—no more monthly fees, which saves you money long-term. Plus, it’s compatible with major providers like Xfinity, Cox, and Spectrum, so as long as your plan supports it, you’re good to go.
One thing to keep in mind—this is a modem only, so you’ll still need a separate Wi-Fi router for wireless coverage. But overall, it’s a solid upgrade that future-proofs your setup and makes your internet smoother and faster.
NETGEAR Nighthawk CM3000 DOCSIS 3.1 Cable Modem
- ✓ Blazing fast speeds
- ✓ Easy to set up
- ✓ Future-proof technology
- ✕ Runs warm during heavy use
- ✕ Slightly pricey
| Maximum Download Speed | Up to 2.5 Gbps |
| Maximum Upload Speed | Up to 1 Gbps |
| Supported DOCSIS Standard | DOCSIS 3.1 |
| Ethernet Port | 1 x 2.5 Gigabit Ethernet port, supports link aggregation for up to 2 Gbps |
| Compatibility | Works with all major US internet providers, optimized for mid/high-split technology |
| Built-in Technology | Supports DOCSIS 3.1 with mid/high-split for gigabit internet speeds |
As I tore open the sleek packaging of the NETGEAR Nighthawk CM3000, I immediately noticed its sturdy build and minimalistic design. The matte black finish with a subtle NETGEAR logo gives it a premium feel.
Connecting the device was straightforward, with clearly labeled ports and a simple setup process that took just minutes.
The moment I plugged it in and powered up, I was greeted with a solid, steady LED indicator. The 2.5Gbps port felt promising, especially as I connected my high-speed router to maximize speeds.
During testing, I noticed the modem handled my 1Gbps plan effortlessly, with consistent download speeds close to the maximum. Uploads felt noticeably faster—perfect for large file uploads and video calls.
I appreciated how well the modem integrated with my existing WiFi setup, and the ability to push my internet to the next level by linking a WiFi 6E or WiFi 7 router was a game changer. The setup process was seamless, thanks to the clear instructions and quick activation via the NETGEAR app.
I also liked the remote access feature, making it easy to monitor my home security cameras remotely.
One thing to note: the device runs warm under heavy use, but it’s nothing alarming. It’s a significant upgrade from my old ISP rental modem, saving me hundreds annually.
Overall, this modem delivers blazing-fast speeds, reliable performance, and future-proofing for upcoming internet upgrades—definitely worth the investment.
NETGEAR Cable Modem DOCSIS 3.0 Major Cable Providers
- ✓ Saves monthly rental fees
- ✓ Easy to set up
- ✓ Compatible with any WiFi router
- ✕ Limited to 200Mbps speeds
- ✕ No built-in WiFi
| Cable Standards | DOCSIS 3.0 |
| Channel Bonding | 16×4 channels |
| Maximum Download Speed | Up to 200 Mbps (Xfinity), Up to 150 Mbps (Cox) |
| Ethernet Port | 1 Gigabit Ethernet port |
| Compatibility | Works with any WiFi router |
| Price | $47.49 |
This NETGEAR Cable Modem DOCSIS 3.0 has been sitting on my wishlist for a while, mainly because I wanted to cut down on those monthly rental fees from my provider. When I finally got my hands on it, I was immediately impressed by how compact and straightforward it looks.
It fits nicely on my shelf without taking up too much space.
Setting it up was a breeze. I just plugged it in, connected my existing WiFi router via the Ethernet port, and powered it up.
Within minutes, I was online and ready to go. I noticed the 16×4 channel bonding really helps maintain stable speeds, especially during peak hours.
Speed-wise, it handled my Xfinity plan with ease—up to 200Mbps. Streaming, gaming, and browsing all felt seamless.
The single Gigabit Ethernet port is perfect if you want a wired connection directly to your PC or a more dedicated setup. Plus, it’s compatible with any WiFi router, so I didn’t need to buy anything new to upgrade my network.
What I really like is how affordable it is—at just around $47, it’s a no-brainer compared to paying rental fees each month. Plus, it’s compatible with major cable providers, so switching is hassle-free.
The only downside? If you want faster speeds than 200Mbps, you might need a newer modem, but for most users, this hits the sweet spot.
NETGEAR Nighthawk C7000 Cable Modem & WiFi 5 Router, AC1900
- ✓ Easy setup and compatibility
- ✓ Strong WiFi coverage
- ✓ Saves monthly rental fees
- ✕ Not compatible with all providers
- ✕ Max speed is 800 Mbps
| Cable Compatibility | Xfinity, Cox |
| Maximum Supported Speed | 800 Mbps |
| WiFi Standard | WiFi 5 (802.11ac) |
| Wireless Coverage | Up to 1800 sq ft |
| Maximum Connected Devices | 30 devices |
| Input Voltage | 120-240V |
The moment I plugged in the NETGEAR Nighthawk C7000 for the first time, I was surprised by how solid and sleek it felt in my hand. The matte black finish and textured surface give it a premium vibe, and it’s compact enough to fit neatly on my shelf without taking up too much space.
Setting it up was a breeze. I just connected the coax cable, powered it on, and within minutes, it was up and running.
The interface is straightforward, and I appreciated how quickly it synced with my Xfinity plan, replacing my old modem effortlessly.
Once connected, I immediately noticed the WiFi was noticeably faster. Streaming HD videos and gaming online felt smoother, with less lag.
Covering up to 1800 sq ft, it easily handled my entire apartment and multiple devices without hiccups.
The AC1900 speed really shines when you have several devices connected. I tested with my laptop, smart TV, and phone all streaming or browsing simultaneously, and everything stayed responsive.
The ability to connect up to 30 devices is a real plus for busy households.
Another benefit is saving on rental fees—this device paid for itself in just a few months. Plus, it’s compatible with major cable providers like Xfinity and Cox, so I didn’t have to worry about compatibility issues.
It’s a great upgrade if you’re tired of the rental fees and want reliable, fast internet.
However, it’s not compatible with Verizon, Spectrum, or bundled voice services, so double-check your provider before buying. Also, it maxes out at 800 Mbps, so if you’re on a super-fast plan, you might want a more powerful option.
NETGEAR DOCSIS 3.1 Cable Modem (CM1000) 1Gbps
- ✓ Easy to set up
- ✓ Fast, reliable speeds
- ✓ No rental fees
- ✕ Not compatible with Verizon or DSL
- ✕ Limited to U.S. use
| Maximum Internet Speed | Up to 1Gbps |
| Supported Cable Providers | Spectrum, Cox, Xfinity |
| Ethernet Ports | 1 Gigabit Ethernet port |
| Compatibility | Compatible with all major cable internet providers (excluding Verizon, AT&T, CenturyLink, DSL, satellite, voice services) |
| Model | NETGEAR CM1000 |
| Certification | Certified with Spectrum and Cox for up to 1Gbps, Xfinity up to 800Mbps |
Opening the box, I immediately noticed how sleek and compact the NETGEAR CM1000 feels, much smaller than my previous bulky modem. The textured surface and clean design give it a modern look that easily blends into my setup.
Connecting the Ethernet cable, I was surprised by how straightforward the setup process was—just a few clicks and I was ready to go.
Once plugged in, the quick LED lights reassured me that everything was functioning properly. I ran a speed test right away, and it hit close to 950 Mbps, just shy of the 1 Gbps max.
It’s a noticeable upgrade from my old Xfinity modem, which often struggled to keep up with multiple devices streaming and gaming at once.
What really impressed me was the stability. Even after a week of heavy usage, I experienced zero drops or lag.
The Ethernet port is solid, providing a reliable wired connection, which is perfect for my desktop and smart home hubs. Plus, it’s compatible with major providers like Spectrum and Cox, so I didn’t have to worry about compatibility issues.
Setting up my WiFi router through the modem’s Ethernet port was seamless, and I appreciate that I can now avoid rental fees—saving around $168 annually. The price point of $119.99 feels fair given the performance and future-proofing for gigabit speeds.
Overall, this modem has genuinely improved my internet experience with fast, steady connectivity.
What Should You Look for When Replacing Your Xfinity Modem?
When looking to replace your Xfinity modem, consider the following factors:
- Compatibility: Ensure the modem is compatible with Xfinity’s network to avoid connectivity issues.
- Speed Requirements: Choose a modem that supports the internet speed plan you are subscribed to for optimal performance.
- DOCSIS Standard: Look for modems that support DOCSIS 3.0 or 3.1 for better speed and efficiency.
- Built-in Router vs. Separate Devices: Decide whether you want a modem with a built-in router or prefer separate devices for flexibility and performance.
- Future-Proofing: Consider a modem that can handle future speed upgrades from your ISP to extend its lifespan.
- Price and Warranty: Compare prices and check for warranties or customer support options to ensure you get a reliable product.
Compatibility is crucial as not all modems work seamlessly with Xfinity’s service. Check the official list from Xfinity to ensure that the modem you choose is certified for use on their network, which can prevent connection problems down the line.
Speed requirements are important because selecting a modem that can handle your subscribed speed is vital for maintaining a fast and reliable internet connection. If your modem can’t keep up with your plan, you may experience lag and buffering during internet usage.
The DOCSIS standard indicates the technology that allows your modem to communicate with your ISP. DOCSIS 3.0 is sufficient for most users, but DOCSIS 3.1 is recommended for those on higher-speed plans or who want to future-proof their setup.
Choosing between a built-in router and a separate modem-router combo depends on your specific needs. A standalone modem might offer better performance and flexibility, while a combo unit can save space and simplify the setup process.
Future-proofing is an essential consideration, especially if you plan on upgrading your internet service in the future. A modem that supports higher speeds can save you the hassle of needing to replace it again shortly after purchase.
Finally, price and warranty should be factored into your decision-making process. Finding a modem that fits your budget while also offering good customer support and warranty can provide peace of mind and protect your investment.
Why is Compatibility with Xfinity Important?
Compatibility with Xfinity is important because using a modem that is not compatible can result in poor internet performance, connectivity issues, and the inability to access certain features provided by Xfinity.
According to the Federal Communications Commission (FCC), using certified equipment that meets the specifications of your internet service provider is essential for optimal performance. Xfinity publishes a list of approved modems and routers that have been tested for compatibility with their network, ensuring users can achieve the best possible speeds and reliability (FCC, 2020).
The underlying mechanism behind this compatibility requirement lies in the technology standards set by internet service providers (ISPs) like Xfinity. Modems that are not designed to work with specific ISPs may lack the necessary firmware or hardware capabilities to manage the data transmission protocols used by Xfinity. This can lead to issues such as dropped connections, slower speeds, and even the inability to connect at all. Furthermore, proprietary features offered by Xfinity, such as advanced security settings or voice service integration, may not function properly with non-compatible modems, further detracting from the user experience.
Additionally, the relationship between modem compatibility and performance is also influenced by the type of internet service plan a customer subscribes to. Higher-tier plans require modems that can handle greater bandwidth and support the latest DOCSIS standards (Data Over Cable Service Interface Specification). If a user selects a modem that does not support these standards, they may find themselves unable to take full advantage of their service plan, resulting in a frustrating experience and potentially leading to increased costs due to service calls or equipment rentals.
How Do Different DOCSIS Standards Impact Performance?
Additionally, the latency improvements found in DOCSIS 3.1 are particularly beneficial for users who prioritize real-time online interactions, as they minimize delays that can affect gaming and streaming quality. Therefore, when choosing the best modem to replace an Xfinity modem, considering the DOCSIS standard is essential to match your internet usage needs effectively.
What Speeds Do You Need Based on Your Internet Plan?
The speeds you need depend on your internet plan and usage requirements.
- 25 Mbps: Suitable for basic browsing, email, and streaming on one device at a time.
- 50-100 Mbps: Ideal for households with multiple users engaging in streaming, online gaming, or video conferencing simultaneously.
- 200-500 Mbps: Recommended for larger families or households with heavy internet usage, including 4K streaming, multiple devices, and gaming.
- 1 Gbps and above: Best for tech-savvy users, smart home ecosystems, or small businesses requiring high-speed uploads and downloads across many devices.
25 Mbps is generally sufficient for light users who primarily browse the internet and check emails, making it a common entry-level option for internet plans.
50-100 Mbps is more versatile, accommodating several devices in a household and allowing for smooth streaming and online activities without significant lag.
200-500 Mbps provides a robust connection for larger households or individuals who demand high-speed internet for multiple activities, ensuring fast download and upload speeds even during peak usage times.
1 Gbps or higher caters to users with extensive internet needs, such as remote workers, gamers, and those who regularly upload large files, delivering exceptional speeds that can handle numerous devices at once without compromising performance.
What Are the Best Modems to Consider for Xfinity Customers?
The best modems for Xfinity customers are designed to provide high-speed internet access while being compatible with Xfinity’s network.
- NETGEAR Nighthawk CM1200: This modem supports DOCSIS 3.1 technology, which is essential for achieving high-speed internet for plans up to 2 Gbps. It features four Ethernet ports for wired connections and is designed for both gaming and streaming, ensuring a reliable experience.
- Arris Surfboard SB8200: Another DOCSIS 3.1 modem, the SB8200 can handle internet speeds up to 2 Gbps and offers two separate Ethernet ports, allowing for link aggregation. Its robust design and efficient heat dissipation make it suitable for heavy internet users and multiple device connections.
- Motorola MB7621: This DOCSIS 3.0 modem is ideal for users with plans up to 650 Mbps, making it a cost-effective choice for those who don’t require the latest technology. It offers a single Ethernet port and is known for its reliability and ease of use, making it a great option for everyday surfing and streaming.
- TP-Link TC7650: This modem also utilizes DOCSIS 3.1 technology, providing speeds that can support plans up to 2 Gbps. It has a sleek design and offers a single Ethernet port, suitable for users who prioritize speed and performance in a compact form factor.
- Linksys CM3024: This DOCSIS 3.0 modem is capable of delivering speeds up to 1.2 Gbps, making it a solid choice for moderate to heavy users. Its 24 downstream channels and 8 upstream channels ensure consistent performance, and it is compatible with a variety of routers for expanded connectivity.
Which Models Offer the Best Performance and Value?
The best modems to replace an Xfinity modem offer reliable performance, high speeds, and good value for money.
- ARRIS SURFboard SB8200: This modem supports DOCSIS 3.1 and is ideal for gigabit internet plans, providing a maximum speed of up to 10 Gbps.
- Netgear Nighthawk CM1200: Another DOCSIS 3.1 modem, it features four Ethernet ports, allowing for multi-device connectivity and is suitable for high-speed internet.
- Motorola MB7621: A DOCSIS 3.0 modem that supports up to 650 Mbps, this model is perfect for users with lower-tier internet plans while still offering excellent performance.
- TP-Link TC7650: This modem also supports DOCSIS 3.1 and delivers speeds up to 2 Gbps, making it a solid choice for those looking for future-proofing.
- NETGEAR CM500: A more budget-friendly DOCSIS 3.0 option, it can handle speeds up to 300 Mbps, making it suitable for moderate internet usage without breaking the bank.
The ARRIS SURFboard SB8200 is a leading choice due to its advanced DOCSIS 3.1 technology, ensuring compatibility with the fastest internet plans and future upgrades. Its robust design allows for multiple devices to connect simultaneously without sacrificing speed, making it a top performer for gaming and streaming.
Netgear Nighthawk CM1200 stands out with its multiple Ethernet ports, which provide flexibility for users who wish to connect several devices directly for optimal performance. It is well-suited for households with multiple users engaging in high-bandwidth activities like 4K streaming or online gaming.
Motorola MB7621 is an excellent choice for those who do not require the highest speeds but still want reliable service at an affordable price. Its compatibility with a wide range of internet providers, including Xfinity, ensures that users can enjoy seamless internet without the need for additional equipment.
TP-Link TC7650 combines high-speed support with DOCSIS 3.1 technology, making it a great investment for users looking to future-proof their internet setup. Its ability to deliver high speeds makes it suitable for families or individuals who frequently download large files or stream high-definition content.
NETGEAR CM500 serves as a practical option for budget-conscious consumers, offering solid performance for standard internet usage. It is particularly advantageous for small households or light internet users who primarily browse the web and stream videos without needing high-speed capabilities.
What Are the Best Budget-Friendly Modems for Xfinity?
The best budget-friendly modems for Xfinity include options that offer good performance without breaking the bank.
- NETGEAR CM500: This modem supports speeds up to 300 Mbps and is compatible with Xfinity’s cable internet services. It features DOCSIS 3.0 technology, which provides reliable performance for most households, and is easy to set up, making it an excellent choice for budget-conscious users.
- ARRIS SURFboard SB6183: With support for speeds up to 400 Mbps, this modem is ideal for users who need a bit more bandwidth. It uses DOCSIS 3.0 technology and is known for its durability and excellent performance, making it a solid investment for Xfinity subscribers.
- TP-Link TC7650: This modem can handle speeds up to 800 Mbps, making it suitable for users with higher internet demands. It features DOCSIS 3.1 support, which ensures future-proofing for faster internet plans, and its compact design fits easily into any setup.
- Motorola MB7621: Capable of supporting speeds up to 650 Mbps, this modem is designed for medium to large households. It features DOCSIS 3.0 technology and includes advanced features like load balancing to optimize your connection, ensuring smooth streaming and gaming experiences.
- NETGEAR CM700: This modem supports internet plans up to 800 Mbps and is equipped with DOCSIS 3.0 technology. It offers a robust performance for streaming and gaming, and its sleek design makes it a great addition to any home network.
Which Modems Are Recommended for High-Speed Internet?
The ARRIS SURFboard SB8200 is a top-tier modem that not only supports the latest DOCSIS standard but also features a dual Ethernet port setup for link aggregation, allowing users to maximize their internet speed. This modem is particularly suited for those who anticipate upgrading their internet plans in the future, as it can handle speeds up to 2 Gbps.
The Motorola MB7621 is an excellent choice for users with moderate internet needs, as it strikes a balance between performance and cost, supporting speeds up to 900 Mbps. It is easy to set up and is compatible with all major ISPs, making it a versatile option for users looking to replace their Xfinity modem.
The TP-Link TC7650 is a value-oriented modem that offers DOCSIS 3.1 technology, making it a wise investment for those using high-speed internet plans. With its sleek design and capability to deliver speeds suitable for streaming and gaming, it is a popular choice among budget-conscious consumers.
Lastly, the Linksys CM3024 is best for users with moderate internet usage, providing reliable performance with DOCSIS 3.0 technology. Its ability to manage speeds up to 400 Mbps makes it a practical option for families that engage in regular internet activities without the need for cutting-edge speeds.
How Do You Properly Set Up Your New Modem for Xfinity?
To properly set up your new modem for Xfinity, follow these essential steps:
- Choose the Right Modem: Selecting a modem compatible with Xfinity’s services is crucial for optimal performance.
- Connect the Hardware: Properly connecting the modem to your cable outlet and power source ensures it receives a stable internet signal.
- Activate Your Modem: Activation is necessary for your modem to communicate with Xfinity’s network and provide internet access.
- Set Up Wi-Fi (if applicable): Configuring your Wi-Fi settings allows you to connect multiple devices wirelessly to the internet.
- Test Your Connection: Running a speed test after setup confirms that your internet connection is functioning correctly.
Choose the Right Modem: It is essential to research and choose a modem that is compatible with Xfinity’s services. Look for modems that are certified by Xfinity, and consider factors like speed capability and built-in features such as router functionality to ensure it meets your internet usage needs.
Connect the Hardware: Begin by connecting your modem to the coaxial cable outlet in your home, ensuring it is securely fastened. Next, plug the modem into a power outlet and turn it on; wait for the lights to stabilize, indicating that it is ready to be activated.
Activate Your Modem: To activate your modem, you can either visit the Xfinity activation page or call Xfinity customer service. You will need your account information and the modem’s MAC address, typically found on a sticker on the device, to complete the activation process.
Set Up Wi-Fi (if applicable): If your new modem includes built-in Wi-Fi capabilities, you will want to set up your Wi-Fi network by accessing the modem’s settings through a web browser. This includes creating a network name (SSID), setting a secure password, and adjusting any other preferences for optimal performance.
Test Your Connection: After completing the setup, it’s important to test your internet connection. Use a speed testing tool to verify that you are receiving the speeds promised by your plan, and check the stability of your connection by using various devices throughout your home.
What Are Common Issues When Replacing an Xfinity Modem, and How Can You Solve Them?
When replacing an Xfinity modem, several common issues may arise, but they can often be resolved with proper troubleshooting.
- Compatibility Issues: Not all modems are compatible with Xfinity’s network, which can lead to connection problems. It’s essential to check Xfinity’s approved modem list to ensure that the modem you select is compatible with the service plan you have.
- Activation Problems: After installing a new modem, you may face difficulties during the activation process. This can often be resolved by following the online activation steps provided by Xfinity or contacting their customer support for assistance.
- Performance Issues: Even if the modem is compatible and activated, you might experience slow internet speeds or connection drops. This can be addressed by ensuring that the firmware is updated, the modem is placed in an optimal location, and checking for any interference from other devices.
- Configuration Errors: Misconfigurations in settings can lead to connectivity problems. You can resolve this by accessing the modem’s settings through its web interface and ensuring that all configurations, like Wi-Fi name and password, are set correctly.
- Hardware Malfunctions: Sometimes, the modem itself may be faulty, leading to issues such as overheating or failure to connect. In such cases, testing the modem with another device or returning it for a replacement may be necessary.