Internet traffic slows your speed as demand spikes. The more people in your area who are online at the same time, the more likely you’ll notice a little sluggishness with your internet connection. This is most common during peak hours, typically in the evenings between 6 and 11 p.m. The increased traffic creates congestion that slows your internet speeds and increases latency and jitter.
- Internet Traffic: The amount of data moving over a network increases with more users online.
- Network Congestion: The effect that increased traffic has on a network, which can reduce performance.
Besides an increase in users, there are a few other factors that affect internet traffic and slow performance. We’ll cover what those are, how to test your internet connection for congestion or Wi-Fi issues, and, most importantly, how to optimize your home network to combat the effects of internet traffic.
Key Takeaways About Internet Traffic and Speed
- Internet traffic rises during peak hours and can slow speeds for everyone on shared infrastructure, like cable internet.
- High traffic can increase latency and jitter, not just your download and upload speeds.
- A wired test helps separate home Wi-Fi issues from internet traffic and congestion.
- Small changes, like using Ethernet, placing your router centrally in your house, and pausing large downloads, can minimize the effects of congestion.
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What is Internet Traffic?
Internet traffic is the amount of data that is being transferred over the internet at any given time. Increased internet traffic can slow down your internet speed and response times (latency). This is because the data packets have to compete for internet bandwidth, causing delays and increasing latency.
Multiple factors impact overall internet traffic: network congestion, peak usage hours, and throttling.
Network Congestion
Network congestion happens when there is too much traffic on a network, which can lead to slower speeds for everyone. This can happen during peak usage times, such as in the evening when people are at home using the internet.
Data Throttling
Data throttling, also known as bandwidth throttling, is a technique used by internet providers to limit speeds and bandwidth. Providers commonly throttle speeds to manage network quality or to enforce data policies and data cap limits. While it helps maintain a stable network experience, it can be frustrating when you’re trying to stream video or work from home.
Peak Usage Times
Peak usage times are the periods of the day when more users are online, leading to increased traffic and congestion. This is typically in the evening, when people are at home using the internet for work, school, or entertainment. During peak usage times, you’ll likely experience slower internet speeds than at other times of day.
Symptoms of Increased Internet Traffic
| Metric | What Changes During High Traffic | What You’ll Notice |
| Download | Often decreases | buffering, lower video quality |
| Upload | Can drop sharply | choppy calls, slow sends |
| Latency | often increases | lag in games/calls |
| Jitter | increases variability | stutters, robotic audio |
| Packet loss | may appear | freezes, disconnects |
Is It Internet Traffic or Your Wi-Fi? How to Test Your Connection When Speeds Are Slow
Sometimes your internet speed is slow because of network traffic and congestion, and other times it may be your Wi-Fi network or something else in your house. You can run a series of internet speed tests to quickly determine whether it’s a network or provider issue, or something with your router or Wi-Fi setup.
- Start with a wired speed test
Plug your laptop or PC directly into your router with an Ethernet cable and run a speed test. This will give you the best measurement of your internet connection.- Note the download and upload speeds, as well as the latency.
- If your download speed is significantly lower than what you’re paying for, it could be internet traffic or an issue on the provider’s end.
- If speeds are slow, repeat the test at another time of day.
- Repeat the speed test from a device connected via Wi-Fi near the router.
Wi-Fi speeds are almost always slower than wired speeds due to interference from other Wi-Fi devices.- If the results of the Wi-Fi speed test are within about 10-20% of the wired test, then your Wi-Fi network is likely working as it should.
- If the results are significantly lower than the wired test, it may indicate an issue with Wi-Fi from your router.
- Try running the Wi-Fi speed test again on a different device to rule out any device-specific issues.
- What to do with the speed test results
- If your wired and Wi-Fi speed tests are close but lower than what you’re paying for from your internet provider, try doing the tests again at a different time of day. Remember, speeds are more likely to be slower in the evening because of internet traffic and congestion.
- If, after running speed tests at various times of day, your speeds are still low, contact your internet provider. They can usually analyze and diagnose network issues without sending a tech to your house.
- If your wired speeds are solid but your Wi-Fi speed is slow, you can take steps to troubleshoot and optimize your router for top performance.
Optimize Your Internet Connection for High Internet Traffic
While there really isn’t much you can do about the amount of traffic on the internet, there are several steps you can take to minimize its impact on your home network.
- Use a wired connection instead of Wi-Fi: A wired connection is more reliable and offers faster internet speeds than Wi-Fi.
- Optimize Your Wi-Fi Network
- Place your router in a central location, away from obstructions and other electronic devices.
- Consider changing the Wi-Fi channel to minimize interference from neighboring networks.
- Updating your router’s firmware to enhance its performance and security.
- Avoid using your internet during peak times: These are when most people are online, so there is more traffic. If you can, avoid using the internet during these times.
- Limit Bandwidth-Intensive Activities: Streaming high-definition videos, downloading large files, or playing online games can strain your internet connection and slow other online tasks. Consider postponing these activities to non-peak hours or scheduling downloads during off-peak times.
- Prioritize Essential Services: Identify the online services or applications that are crucial to your needs, such as Zoom meetings for work or online classes. Prioritize these services by closing other bandwidth-consuming applications or background processes that are not essential.
- Close any unnecessary applications: When you have a lot of applications open, they can all be using your internet at the same time. Closing any unnecessary applications can free up bandwidth and improve your internet speed.
- Upgrade your internet plan: If you are still experiencing slow internet speeds after trying these tips, you may need to upgrade your internet plan. A higher-speed internet plan will give you more bandwidth, which can help to reduce the impact of internet traffic.
What to Do Next When Internet Traffic Spikes
Internet traffic spikes can absolutely slow your connection down and cause frustrating sluggishness while gaming, streaming, or browsing, with pages loading slowly. Congestion from internet traffic often shows up as lower speeds and higher latency. If you’re experiencing it during the evening, then it is likely due to increased traffic. But if it happens consistently, then you may have an issue with your Wi-Fi.
The easiest way to tell what’s going on is to run an internet speed test both via an Ethernet cable (wired) and via Wi-Fi (wireless). If the wired results match your internet plan’s speeds, the issue probably isn’t traffic or congestion. If your Wi-Fi speed is significantly slower, you may need to optimize and troubleshoot your router and Wi-Fi network.
FAQs About Internet Traffic and Speed
How does internet traffic affect speed?
Internet traffic is the amount of data that is moving over a network at any given time and is influenced by the number of people and devices that are on the network. When traffic spikes, it can create congestion, which lowers speeds and raises latency. Congestion is sometimes the worst during peak hours in the evenings between 6pm and 11pm. Your Wi-Fi can also be a bottleneck, so slowdowns aren’t always coming from your ISP.
Why is my internet slower at night?
Internet speeds are commonly slower in the evenings and night because it is when most people are online streaming, gaming, and using social media. If you’re on shared infrastructure, like cable internet, you’ll notice the congestion more.
How can I reduce internet traffic at home during peak hours?
There’s not much you can do about internet traffic, but you can improve your connection at home by:
- Pausing big downloads, updates, and cloud syncs
- Limiting the number of HD or 4K video streams
- Scheduling backups and uploads to run overnight
- Turning on QoS (quality of service) in your router settings to prioritize connectivity by device
How do I know if it’s throttling or congestion?
Internet providers do sometimes throttle internet speeds to manage network congestion, and the easiest way to tell if it’s throttling or congestion to see if all devices are slow or if some devices using specific services are slower.
- Congestion: Typically most pronounced in the evenings it affects all devices whether connected via Ethernet or Wi-Fi
- Possible throttling: If your streaming service is buffering and sluggish, but all other activities are performing normally, then your provider may be throttling high data use services like streaming.
Should I run a speed test during peak hours?
Yes, because peak-hour speed tests will show you network performance at that time. Then you can run tests at other times during the day (morning, afternoon and evening) for several days to compare results. This will show you how much your connection is affected by internet traffic, or it may show you that there’s an issue with your provider’s network or issues with your home Wi-Fi network.
