How To Know If Isp Is Throttling
How Can I Tell If My ISP Is Throttling My Internet?
Aug 23, 2021 Share
FAQ, Internet Speed Guides
To determine if your internet service provider (ISP) is throttling your internet connection, plug a computer into your modem and run our speed test. After that, open a virtual private network (VPN) client—we provide a list of the best VPNs—and rerun the test. If your connection is significantly faster while using the VPN, your ISP is likely throttling your service.
This trick works because ISPs sometimes throttle your speeds when they notice certain types of traffic, like torrenting. However, a VPN encrypts your data and connection, so the ISP can’t see what you’re doing online.
Of course, there are reasons for slower speeds other than ISP throttling, like traffic congestion and general connection issues. We’ll walk you through everything you need to know about internet bandwidth throttling to determine if that is indeed your issue.
Throttling is when your ISP intentionally limits your connection’s bandwidth. Providers do this for several reasons, and it usually manifests as a sloth-like connection.
Why do ISPs throttle your connection?
ISPs have many reasons for throttling your internet connection. But these are the top four culprits:
Network congestion
Exceeding data caps
Paid prioritization
Forbidden activity
Cable internet providers sometimes throttle a specific area during times of heavy use. Throttling balances all connections so that certain houses don’t use more network bandwidth than others. Peak times likely happen between 7:00 p. m. to 11:00 p. m., although service group congestion is less of an issue now than it has been in recent years.
Some ISPs limit how much data you can send and receive during one billing cycle. They will reduce your bandwidth if your downloads exceed that limit.
Keep in mind that everything you access online requires a download, whether it’s just a web page, a mobile app, or streaming video. Moreover, everything you do requires an upload, too, like requesting access to a website, sending an email, posting to social media, and so on.
All this interaction with the internet uses your monthly data allotment. ISPs usually offer a way to monitor your data usage through an online portal, so you don’t go overboard throughout the month.
Any ISP that enforces a data cap must include that information in your service agreement. So, if you’re experiencing throttling, take a look at your contract or call customer service.
Here’s a list of internet service providers with data caps:
AT&T
Buckeye Broadband
Cable ONE
CenturyLink
Cox
HughesNet
Mediacom
Viasat
Xfinity
A few internet providers without data caps are Spectrum, Frontier, and RCN.
Some bandwidth throttling has nothing to do with your specific web surfing habits. Here are a few examples:
An ISP provides a proprietary streaming service and will throttle Netflix, Hulu, and similar services.
An ISP wants a specific website to pay for faster load times.
Certain types of data—large downloads, torrents, FTP file sharing—use a lot of bandwidth and put pressure on the network.
All of this is good for ISP but terrible for consumers. Moreover, paid prioritization used to be illegal until the Federal Communications Commission (FCC) repealed the net neutrality laws in 2018.
What is net neutrality?
Net neutrality is the idea that your ISP shouldn’t control what you can and can’t access on the internet. With net neutrality, all ISPs must treat lawful internet data equally.
The legislation was passed in 2015 in the US to protect net neutrality. But those protections were repealed in 2018, leaving control of the internet up to corporations who greatly benefit from practices that hurt the free internet and everyone who uses the internet—things like paid prioritization, censorship, and throttling.
We support net neutrality because a free and open internet is imperative to free speech in America.
Contact your Senator to support net neutrality and the Save the Internet Act.
ISPs can throttle internet connections when the customer participates in illegal online activities.
How do I stop throttling?
Use a VPN to bypass ISP throttling. It creates a secure, encrypted tunnel between you and a dedicated server. This server then decrypts your data and sends it to the destination in plaintext. This data does not include your IP address or any other information that can link back to you.
However, some ISPs may throttle your bandwidth if they detect your VPN (some VPNs can ignore this). Be sure that you’re using the best VPN for your needs, as the wrong one can make your internet throttling issues worse.
Unfortunately, a VPN won’t help with throttling caused by network congestion or data cap overages. In these cases, your ISP restricts the total amount of bandwidth rather than a specific type of data.
If your throttling issues stem from data cap overages, you have four options:
Reduce your monthly usage.
Pay for more bandwidth.
Upgrade to a plan with a higher data cap or unlimited data.
Switch to a provider without data caps.
If you have cable internet and you experience slow speeds during peak hours, try one of the following:
Upgrade to a faster plan
Use the internet during off-peak hours
For example, try downloading large files between 11 p. and 7 a. when most of your neighbors are asleep. On the flip side, if you’re only paying for 100 Mbps and you need more speed, a 400 Mbps plan may be a better option.
Monitor your download speeds often—especially if you notice continuously slow speeds. Complain to your ISP if you don’t see speeds anywhere near your plan’s advertised bandwidth. You may not get the response you want, but you could also hit the jackpot and receive a free upgrade.
Is your ISP is too throttle-happy for your liking? You should look into other options by entering your zip code below.
Other reasons for slow internet
Beyond ISP throttling, there are plenty of reasons for slow internet.
First, check the health of your home network if you’ve already ruled out external factors like ISP throttling.
Second, your plan may not supply enough bandwidth to your household. As we rely on the internet more and more for everything from home security to entertainment, it’s easy to grow out of the internet plan you signed up for a few years ago.
If you’re not sure how much bandwidth you need, start with a speed test. We’ll give you a quick, personalized speed recommendation based on how you use your connection for.
How much speed do you need?
Author – Rebecca Lee Armstrong
Rebecca Lee Armstrong has more than six years of experience writing about tech and the internet, with a specialty in hands-on testing. She started writing tech product and service reviews while finishing her BFA in creative writing at the University of Evansville and has found her niche writing about home networking, routers, and internet access at Her work has also been featured on Top Ten Reviews, MacSources, Windows Central, Android Central, Best Company, TechnoFAQ, and iMore.
Editor – Cara Haynes
Cara Haynes has been editing and writing in the digital space for seven years, and she’s edited all things internet for for five years. She graduated with a BA in English and a minor in editing from Brigham Young University. When she’s not editing, she makes tech accessible through her freelance writing for brands like Pluralsight. She believes no one should feel lost in internet land and that a good internet connection significantly extends your life span.
How Can I Tell If My ISP Is Throttling My Internet?
Aug 23, 2021 Share
FAQ, Internet Speed Guides
To determine if your internet service provider (ISP) is throttling your internet connection, plug a computer into your modem and run our speed test. After that, open a virtual private network (VPN) client—we provide a list of the best VPNs—and rerun the test. If your connection is significantly faster while using the VPN, your ISP is likely throttling your service.
This trick works because ISPs sometimes throttle your speeds when they notice certain types of traffic, like torrenting. However, a VPN encrypts your data and connection, so the ISP can’t see what you’re doing online.
Of course, there are reasons for slower speeds other than ISP throttling, like traffic congestion and general connection issues. We’ll walk you through everything you need to know about internet bandwidth throttling to determine if that is indeed your issue.
Throttling is when your ISP intentionally limits your connection’s bandwidth. Providers do this for several reasons, and it usually manifests as a sloth-like connection.
Why do ISPs throttle your connection?
ISPs have many reasons for throttling your internet connection. But these are the top four culprits:
Network congestion
Exceeding data caps
Paid prioritization
Forbidden activity
Cable internet providers sometimes throttle a specific area during times of heavy use. Throttling balances all connections so that certain houses don’t use more network bandwidth than others. Peak times likely happen between 7:00 p. m. to 11:00 p. m., although service group congestion is less of an issue now than it has been in recent years.
Some ISPs limit how much data you can send and receive during one billing cycle. They will reduce your bandwidth if your downloads exceed that limit.
Keep in mind that everything you access online requires a download, whether it’s just a web page, a mobile app, or streaming video. Moreover, everything you do requires an upload, too, like requesting access to a website, sending an email, posting to social media, and so on.
All this interaction with the internet uses your monthly data allotment. ISPs usually offer a way to monitor your data usage through an online portal, so you don’t go overboard throughout the month.
Any ISP that enforces a data cap must include that information in your service agreement. So, if you’re experiencing throttling, take a look at your contract or call customer service.
Here’s a list of internet service providers with data caps:
AT&T
Buckeye Broadband
Cable ONE
CenturyLink
Cox
HughesNet
Mediacom
Viasat
Xfinity
A few internet providers without data caps are Spectrum, Frontier, and RCN.
Some bandwidth throttling has nothing to do with your specific web surfing habits. Here are a few examples:
An ISP provides a proprietary streaming service and will throttle Netflix, Hulu, and similar services.
An ISP wants a specific website to pay for faster load times.
Certain types of data—large downloads, torrents, FTP file sharing—use a lot of bandwidth and put pressure on the network.
All of this is good for ISP but terrible for consumers. Moreover, paid prioritization used to be illegal until the Federal Communications Commission (FCC) repealed the net neutrality laws in 2018.
What is net neutrality?
Net neutrality is the idea that your ISP shouldn’t control what you can and can’t access on the internet. With net neutrality, all ISPs must treat lawful internet data equally.
The legislation was passed in 2015 in the US to protect net neutrality. But those protections were repealed in 2018, leaving control of the internet up to corporations who greatly benefit from practices that hurt the free internet and everyone who uses the internet—things like paid prioritization, censorship, and throttling.
We support net neutrality because a free and open internet is imperative to free speech in America.
Contact your Senator to support net neutrality and the Save the Internet Act.
ISPs can throttle internet connections when the customer participates in illegal online activities.
How do I stop throttling?
Use a VPN to bypass ISP throttling. It creates a secure, encrypted tunnel between you and a dedicated server. This server then decrypts your data and sends it to the destination in plaintext. This data does not include your IP address or any other information that can link back to you.
However, some ISPs may throttle your bandwidth if they detect your VPN (some VPNs can ignore this). Be sure that you’re using the best VPN for your needs, as the wrong one can make your internet throttling issues worse.
Unfortunately, a VPN won’t help with throttling caused by network congestion or data cap overages. In these cases, your ISP restricts the total amount of bandwidth rather than a specific type of data.
If your throttling issues stem from data cap overages, you have four options:
Reduce your monthly usage.
Pay for more bandwidth.
Upgrade to a plan with a higher data cap or unlimited data.
Switch to a provider without data caps.
If you have cable internet and you experience slow speeds during peak hours, try one of the following:
Upgrade to a faster plan
Use the internet during off-peak hours
For example, try downloading large files between 11 p. and 7 a. when most of your neighbors are asleep. On the flip side, if you’re only paying for 100 Mbps and you need more speed, a 400 Mbps plan may be a better option.
Monitor your download speeds often—especially if you notice continuously slow speeds. Complain to your ISP if you don’t see speeds anywhere near your plan’s advertised bandwidth. You may not get the response you want, but you could also hit the jackpot and receive a free upgrade.
Is your ISP is too throttle-happy for your liking? You should look into other options by entering your zip code below.
Other reasons for slow internet
Beyond ISP throttling, there are plenty of reasons for slow internet.
First, check the health of your home network if you’ve already ruled out external factors like ISP throttling.
Second, your plan may not supply enough bandwidth to your household. As we rely on the internet more and more for everything from home security to entertainment, it’s easy to grow out of the internet plan you signed up for a few years ago.
If you’re not sure how much bandwidth you need, start with a speed test. We’ll give you a quick, personalized speed recommendation based on how you use your connection for.
How much speed do you need?
Author – Rebecca Lee Armstrong
Rebecca Lee Armstrong has more than six years of experience writing about tech and the internet, with a specialty in hands-on testing. She started writing tech product and service reviews while finishing her BFA in creative writing at the University of Evansville and has found her niche writing about home networking, routers, and internet access at Her work has also been featured on Top Ten Reviews, MacSources, Windows Central, Android Central, Best Company, TechnoFAQ, and iMore.
Editor – Cara Haynes
Cara Haynes has been editing and writing in the digital space for seven years, and she’s edited all things internet for for five years. She graduated with a BA in English and a minor in editing from Brigham Young University. When she’s not editing, she makes tech accessible through her freelance writing for brands like Pluralsight. She believes no one should feel lost in internet land and that a good internet connection significantly extends your life span.
What Is ISP Throttling? Why It Happens & How to Stop It | AVG
What is internet throttling?
Internet throttling is when your internet service provider (ISP) slows down your internet on purpose. They can limit bandwidth whenever they want, and you might not notice. But when Netflix gets choppy or Facebook takes minutes to load, your ISP may be limiting data transmission over your connection.
Slow loading times don’t always indicate internet throttling — you might be browsing during peak hours, or you might need to do some browser maintenance.
But maybe your ISP is deliberately impeding your connection to those sites. This may happen because you visit those sites frequently, or maybe your ISP’s available bandwidth is overloaded and they need to throttle your connection.
Internet throttling violates the principle of net neutrality, which states that ISPs must give equal treatment to all communications over the internet.
In the worst-case scenario, you might be kept from doing your work or other important tasks. What’s more, your ISP can keep providing subpar service with impunity. That’s an anti-consumer business practice, and it keeps the internet from being freely accessible to everyone.
If your internet connection has a real effect on your daily life, you should pay attention to the issue of internet throttling.
How can I tell if my internet is being throttled?
If your internet is slower than normal, especially on certain websites, this may indicate that data throttling is happening on your connection. If you’re experiencing any of the symptoms listed here, ask yourself: Is my internet being throttled?
Your internet has become slower than usual, or your Wi-Fi connection is choppy or broken.
Certain websites or services load slower than others.
Your download speeds are suffering.
Your videos are constantly buffering or lagging.
Some websites seem to be blocked or non-functional.
If you don’t experience slowdowns often, you don’t need to worry about data throttling. But if you do, the next step is to use an internet throttling test, which analyzes your internet speed and lets you know if it’s being messed with. And there are other services that help you spot connection abnormalities.
Here are the three easiest ways to check if your ISP is throttling your internet connection:
Option 1: Use the Internet Health Test to see how your internet performs over a short period of time. This test checks your connection speed to popular access points and detects any unusual slowdowns. Here’s what good results tend to look like:
This test detects whether your ISP is slowing down streaming platforms like Netflix. The ISP can use this tactic as a bargaining chip to get the streaming service to pay them, which is unfair to you.
Option 2: Check if certain ports are blocked. Gamers will want to go to, click Port Scanners, and then click Game Ports. This advice is relevant only if you use an open port while gaming online and have recently begun experiencing issues.
You should worry only if a game you play is coming back with a “Timed-Out” status. The first step in that case is to try port forwarding, if you haven’t done so already.
If you’ve been comfortably using one of these ports, and it suddenly hits you with a “Rejected” status, you might have a problem with throttling.
Option 3: Check if the speed of your internet changes when using a VPN. The simplest way to see if your internet is being throttled is to turn on a VPN (virtual private network) and compare the speed. Though your VPN may slow down your internet slightly, the difference is nothing compared to ISP throttling — and you can always make your VPN connection go faster.
If your internet is faster with your VPN on, your ISP might be throttling your internet. So why don’t you just keep your VPN on all the time? Great question!
Solving content-based ISP throttling is one of the many benefits to using a VPN. A virtual private network also encrypts your data to prevent your ISP from monitoring what you do. Encryption secures your internet browsing, making any connection safe — including unsecured public Wi-Fi networks — as long as you’ve got the VPN turned on.
AVG Secure VPN is carefully designed to give you world-class online security, keep you anonymous while you browse, and bring the whole internet to your fingertips. Try it today with a 7-day free trial.
How to stop internet throttling
You can stop internet throttling by changing your ISP or hiding your internet activity with a VPN. Here are the best ways to stop internet throttling:
Switch to a new internet service provider.
Self-regulate your bandwidth use.
Upgrade your internet plan to a higher data cap.
Use a VPN.
Your ISP might have a policy on network throttling that you can find on their website — look in the terms and conditions for anything that mentions bandwidth limits, data caps, or similar terms. You can also learn about their throttling policies by reading user reviews. If you can’t or don’t want to switch ISPs, use a VPN.
How does a VPN stop internet throttling?
By encrypting your internet connection, a VPN prevents your ISP from monitoring your online activity and throttling you because of it. While your ISP can still impose limits on your total bandwidth use, you’ll no longer need to be worried about your activity compromising your connection.
VPNs are easy to set up, and masking your activity is a surefire way to stop your ISP from limiting your access to certain websites and services. And by hiding your IP address, VPNs open up your streaming and TV options significantly. (If you’re on mobile, check out our guide to setting up a mobile VPN. )
With military-grade encryption, AVG Secure VPN is the best VPN to stop internet throttling. Your internet use will stay hidden, protecting you against content-based internet throttling by your ISP. Whether your ISP is actually throttling your internet or not, go with the option that ensures they won’t.
Why is my ISP throttling my internet?
Your ISP may throttle your internet to try to minimize congestion by managing traffic on its network. Throttling can also happen if you’ve reached your data cap (usage limit) within a given period. Only when throttling is used against you should you do something about it. In the meantime, you can also try boosting your Wi-Fi signal to see if that speeds things up.
The most common reasons your ISP throttles your internet connection and limits your data transmission speeds include:
Tackling network congestion
Heavy internet usage will slow down the internet speeds of other people in the same area. To compensate, ISPs may throttle the connection of anyone using high amounts of bandwidth. You may experience slower speeds for a little while, especially if you’ve been engaging in bandwidth-heavy activities, but this usually occurs only during short “rush hour” periods.
Usage regulation
Your connection can become deprioritized if you’ve used a certain amount of bandwidth during the billing period — especially if your internet contract has a data cap. Even “unlimited” plans often have unofficial data caps. Your connection could be the first to get throttled in periods of network congestion, or your speeds might stay reduced until the next cycle starts.
If your work or other activity requires a stable, high-speed connection for hours at a time, look closely at your ISP’s policies on data use. Gamers will want the best setup possible, especially if they’re competing or streaming on Twitch.
Deprioritization of certain services
In many places, ISPs are allowed to limit access to streaming services as part of their efforts to manage everyone’s connections. But you shouldn’t be deprived of parts of the internet for arbitrary reasons totally unrelated to you. Likewise, those who want to stream without buffering might want to try a different ISP — if there are options where you live.
Is ISP throttling illegal?
ISP throttling is not illegal, and sometimes, it’s even necessary. Your connection would be much choppier if your ISP wasn’t allowed to manage usage over its network. Throttling allows your ISP to ensure stable service for everyone using the internet. But there are some ways that throttling can be unethical.
Net neutrality in the US
In the US, ISPs weren’t always allowed to throttle particular applications and services. But when the country’s net neutrality rules were repealed in 2018, these limits were removed. Now, ISPs are no longer legally required to treat all internet traffic equally.
ISPs are also allowed to make you pay for the “fast lane, ” something that wasn’t possible under net neutrality regulations. You’re presented with the “choice” to go with a standard connection or a marked-up package.
You might not have noticed the effects of net neutrality’s repeal, but an open and ethical internet provides equal opportunity to all. When the rulebook favors the corporate bottom line, you might be prevented from making a career pivot to online teaching or Twitch streaming. Net neutrality is an issue that concerns us all.
Bypass throttling with a VPN
AVG Secure VPN encrypts your online activity with a single click or tap. No matter where you are, your internet connection will be safe from prying eyes, with everything you do completely hidden.
If you’re looking for the simplest throttle bypass, AVG Secure VPN will prevent ISPs from limiting any online activity they don’t like. And with your IP address masked, you’ll be able to unblock websites, avoid IP-based web tracking, and prevent location-based price discrimination.
Take back the internet for yourself today, and try AVG Secure VPN with a 7-day free trial.
Frequently Asked Questions about how to know if isp is throttling
How do you know if your ISP is throttling your connection?
To determine if your internet service provider (ISP) is throttling your internet connection, plug a computer into your modem and run our speed test. After that, open a virtual private network (VPN) client—we provide a list of the best VPNs—and rerun the test.Aug 23, 2021
Are ISP allowed to throttle?
Is ISP throttling illegal? ISP throttling is not illegal, and sometimes, it’s even necessary. Your connection would be much choppier if your ISP wasn’t allowed to manage usage over its network. Throttling allows your ISP to ensure stable service for everyone using the internet.May 19, 2021
How can I tell if I am being throttled?
Check your data cap Usually, internet providers throttle your speed when you’ve reached your data cap. You can see how much data you’ve used by logging into your account or calling your ISP. If you’ve hit your cap, it’s safe to assume your internet is being throttled.Feb 16, 2021
