Why Does My Cable Internet Slow Down at Night? - Gateway Fiber (2024)

Sep 5, 2023 | Home Technology

Why Does My Cable Internet Slow Down at Night? - Gateway Fiber (1)

You get home from a long day and want to surf, game, or watch your most recent favorite binge-worthy show online. So you boot up, hit Play or Go, and...and...and...eventually get online. But that’s just the start of your frustration. In the middle of your show or game, it pauses...and hiccups...and then resumes, eventually. Strangely, this happens less during the day and more at night. But it’s a common issue. Why is that? More importantly, how can you fix it?

You can blame both your internet connection and your neighbors. But let’s lay off your neighbors for a minute because changing your internet connection can eliminate both issues without disturbing the nice folks next door.

If you have cable or DSL internet connection through an old school internet service provider (ISP), you're very familiar with this nightly slowdown and network congestion. It happens a lot. Yes, it's because your neighbors are home and online, but it's not entirely their fault

Understanding Cable Internet and DSL Slowdowns

Cable internet and DSL (Digital Subscriber Line) are two of the most common types of broadband connections in many households. They rely on existing infrastructure, using coaxial cables for cable internet and telephone lines for DSL, to deliver internet service. While both have enabled millions to access the online world, they share limitations that can result in slowdowns when multiple users are active, especially at peak times. When these technologies were introduced, they were considered cutting-edge, the fastest connection around at the time. Today, that’s no longer true, not by a long shot.

Cable Internet Woes: Shared Bandwidth

Cable internet, often provided by the same companies that offer cable television, operates on a shared bandwidth model. This means that multiple households within a neighborhood share the same network resources. This sharing can lead to bottlenecks during peak hours. When your neighbors are streaming movies, playing online games, or video conferencing, the available bandwidth gets divided among all remaining users. Consequently, this can result in slower speeds and buffering as the network struggles to accommodate everyone's demands. You’re paying for a certain speed but not getting it, nor are your neighbors because everyone is pulling from the same pool of bandwidth. It's not just happening to you. Everyone is suffering connection issues together.

DSL Dilemmas: Distance Matters

DSL relies on telephone lines to transmit data and, ironically, does not perform well long distance. The farther you are from the service provider's central hub, the DSLAM (Digital Subscriber Line Access Multiplexer), the weaker the signal becomes. This distance-dependent degradation can cause slower speeds, especially if you're far from the provider's infrastructure. As more neighbors connect simultaneously, the overall demand on the local network can exacerbate the slowdown, leaving you with subpar internet performance. The resulting slowdown can be worse than sharing cable bandwidth.

Fiber Internet: The Speed Revolution

Why Does My Cable Internet Slow Down at Night? - Gateway Fiber (2)

In recent years, fiber-optic technology has emerged as the gold standard for internet connections, addressing the issues plaguing cable and DSL services. Fiber optics uses light pulses to transmit data at incredible speeds, offering several advantages over their traditional counterparts.

Ever wondered what your internet speed really is? Run a quick speed test and find out.

Dedicated Bandwidth: No Sharing Required

One of the most significant advantages of fiber internet is that it provides dedicated bandwidth to each user. Unlike cable internet, where bandwidth is shared among multiple internet users, fiber connections ensure that your internet speed remains consistent regardless of your neighbors' activities. Each household receives its own dedicated fiber, eliminating the risk of slowdowns during peak hours. Whether streaming 4K content, conducting video calls, or engaging in online gaming, your fiber connection will provide a seamless experience.

Speed and Symmetry: A Winning Combo

Fiber internet is renowned for its exceptional speed capabilities. Fiber blows past cable and DSL connections by a wide margin with download and upload speeds that can reach 1 Gbps (gigabit per second) or more. Moreover, the symmetry of fiber connections, which offers identical upload and download speeds, is particularly helpful for activities like video conferencing, gaming, cloud-based applications, and uploading large files.

Bye-bye Latency

Thanks to symmetrical speeds, clear signal sent through ultra-pure glass, and no risk of electromagnetic interference, fiber internet experiences significantly lower latency, ensuring smooth online interactions in real-time applications, such as online gaming or video conferencing.

What about Wi-Fi?

Chances are, your home network includes a Wi-Fi network for internet access, especially if you stream, game, or work remotely. Not every device has a wired connection through ethernet cables. That would make for a lot of cords running through your home.

Instead, a typical Wi-Fi network works by sending signal from the router or modem out to all devices in the home. Depending on the size and layout of the home, you might need a Wi-Fi extender or mesh network for the signal to reach everywhere.

One important thing to keep in mind regardless of your internet connection is how the Wi-Fi signal works: it shares the bandwidth coming in the home among all connected devices. For example, if you have a 300 Mbps internet plan and have all your devices operating the same time, those 300 Mbps are split among the active devices. For ease math, let’s say there are 10 active devices using equal amounts of bandwidth at the same time. That means each one only gets 30 Mbps.

Why Does My Cable Internet Slow Down at Night? - Gateway Fiber (3)

Problem Solved

In the race for a faster and more reliable internet connection, cable internet and DSL have been outpaced by the revolutionary capabilities of fiber technology. The slowdowns experienced by cable and DSL users during peak usage hours due to shared bandwidth and distance limitations are largely eliminated with fiber-optic connections. With dedicated bandwidth, symmetrical speeds, and minimal interference, fiber internet offers an unparalleled online experience that remains consistently fast and reliable, regardless of how many of your neighbors are online.

Why Does My Cable Internet Slow Down at Night? - Gateway Fiber (2024)

FAQs

Why Does My Cable Internet Slow Down at Night? - Gateway Fiber? ›

Cable internet, often provided by the same companies that offer cable television, operates on a shared bandwidth model. This means that multiple households within a neighborhood share the same network resources. This sharing can lead to bottlenecks during peak hours.

Why is my fiber internet slow at night? ›

Network Congestion Leads to Decreases in Internet Speed At Night. Congestion can be worse in large cities and places that have a high demand related to school and work.

Why is my internet so slow when I have fiber-optic? ›

Bandwidth contention

A 10:1 contention ratio means that 10 users share one fibre cable. Each cable has a maximum bandwidth (or amount of data) that can be sent and received at one time. So, the more people sharing a cable, the smaller the portion of this bandwidth is assigned to each user and the slower the speed.

Does fiber internet slow down during peak hours? ›

While fiber optic cables can transmit data incredibly fast, they still have a maximum amount that they can carry at one time. So in cases with shared fiber connections, you can experience some slowing during peak usage times.

Why does my internet only lag at night? ›

Your internet is slow at night due to network congestion. You may also have slow internet at night if a lot of people are using your home's internet connection at the same time for high-bandwidth activities.

Why does my fiber internet speed fluctuate? ›

If you notice a significant change in performance, then it could be due to an issue with the router or modem or even because of external factors such as interference from other devices. You should consider running a speed test to check your connection and identify any issues.

How can I speed up my fiber optic internet? ›

How to Improve Your Internet Speed
  1. Restart your router.
  2. Move your router.
  3. Adjust the channel or band.
  4. Adjust your router's antennas.
  5. Use an ethernet cable.
  6. Extend your WiFi network.
  7. Remove unnecessary devices from your network.
  8. Check your device.
Apr 2, 2024

Why am I not getting my full fiber speed? ›

Network Congestion – Too many devices on your network are limiting bandwidth. Network Infrastructure – Achieving the maximum advertised speed is often unrealistic because of inherent network infrastructure and technology limitations.

How to boost fiber optic signal? ›

Optical amplifiers are devices that boost the signal power of fiber optic cables without converting them to electrical signals. Optical amplifiers can compensate for the attenuation and loss caused by long distances and multiple connections, and improve the signal-to-noise ratio and quality.

How to boost fiber internet? ›

The closer you are, the better your Wi-Fi signal. In general, position your router near the center of your home for maximum coverage. Keep your router off the floor and out of closets and cabinets. Staying within 100 feet of your router will increase your Wi-Fi speed.

Do neighbors affect internet speed? ›

When your neighbors are streaming movies, playing online games, or video conferencing, the available bandwidth gets divided among all remaining users. Consequently, this can result in slower speeds and buffering as the network struggles to accommodate everyone's demands.

Why is my fiber optic buffering? ›

If you're using an old router, if you have a basic internet plan with low speeds, or if you're using a device that's too far from the router, you may experience lag, buffering wheels, frozen video chats and other annoying delays.

Why does fiber internet go down? ›

Damaged fiber optic cables

There are several causes of cable damage: Animals, like squirrels and sharks, can chew through exposed cables. Extreme weather can cause water damage that leaves cables useless. Car accidents can bring down suspended cables.

Why does internet slow down at midnight? ›

The first step is to understand that your internet likely slows down at night due to network congestion, which stems from many people using it at the same time. But you can make adjustments to your home network to reduce the impact of congestion, and if that fails, you also have the option of upgrading your network.

Does fiber internet slow down with more users? ›

Even better, fiber-optics do not slow down no matter how many users are online. Even if the entire neighborhood is using all its bandwidth, the network does not slow down.

Why is my fiber Internet so slow? ›

The likely culprit: Router Issues

You may also need to replace that old router. Routers become outdated every few years or so, and if your router is out of date, it may not be capable of producing internet speeds capable with fiber optics, and it may even be downright incompatible.

Why does my internet slow down every evening? ›

You may find that your internet speeds slow down in the evening. This is because evenings are peak times for people using the internet – after they have finished work or school. People are often streaming movies, watching TV series or gaming in the evening.

How to fix Wi-Fi being slow at night? ›

Solutions: How to Fix Slow Internet
  1. Disconnect devices not in use. ...
  2. Reposition your equipment location. ...
  3. Restart your router. ...
  4. Create a password for your home network. ...
  5. Invest in WiFi extenders. ...
  6. Switch your frequency band. ...
  7. Run software updates regularly. ...
  8. Clear your browser history.
Apr 11, 2024

Why does my internet go off at the same time every day? ›

It could be due to a variety of factors, such as the time of day when your internet service provider is performing maintenance or upgrades, or if there are too many users connected to the network at that time.

Why is my internet so slow but the speed test is fast? ›

It could be an outdated router. Maybe you have a less-than-ideal router location. You could potentially solve slow speeds with an easy fix, like upgrading to a mesh network (which also has to be set up in the right spot) or simply restarting your modem and router.

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