Internet Slow but Speed Tests are fast - Ethernet

[financialjuice]

So my computer is connected via Ethernet (CAT 6) and my average Download speeds are in the 600s Mbps and uploads are in the 400s Mbps... however the actual internet speed on the computer is extremely slow, YouTube videos struggle to play and usually don't play, and refreshing a webpage like Twitter can be extremely slow

This is screenshot of the speed test via fast.com

Then when I'm watching a YouTube video the Internet speed on my Task Manager Ethernet usually won't ever get higher than 1Mbps


That spike you can see on the graph is when I was doing the speed test, but the screenshot was taken during watching an unbuffered video on YouTube and it was extremely choppy and low quality, it never did fully buffer the video.

Specs of the PC wise:

CPU: Intel i5-9400f
RAM; 16GB
GPU: 2x GTX 1050 Ti
          1x GT 710
Motherboard: Asus TUF h370-PRO Gaming (Wi-Fi) - BIOS venison: 1402
Windows: 10 Pro, 1903

Any help would be appreciated  

[mariushm]

Your data goes through multiple routers, switches and servers until it reaches Youtube.

All the links in the chain must work at high speed in order for you to get fast speed.

Under certain conditions, some fiber optic cables between certain locations can be overloaded and then your traffic gets slown down.

When you're making a speedtest, you're basically retrieving a file or uploading a file (with random data in it generated on the fly) to a test server that's maybe less than 100 miles/km away from you. There's maybe a handful of devices between you and that test server.

With Youtube or other websites, there may be 20+ devices between you and the website, or your data packets go across the ocean to a datacenter and that fiber cable across the ocean is overloaded with data from others.

 

You can download Visual Traceroute  - https://sourceforge.net/projects/openvisualtrace/ - to see how your data packets travel across the world to get to the remote machine. 

 

Also, Youtube may limit uploads on purpose - for example they may limit you to 100 mbps, or 300 mbps... they have lots of servers connected to internet with 10g or 25g or 40g network cards, and each of these servers receive videos from multiple people at the same time... so imagine 30 people uploading a video each to a computer with a 10g internet connection : that 10000 mbps gets split between those 30, some have fast connections, some slow.... so you may get only 100 mbps or you may get 1000 mbps, depends on time of day, the server you're uploading to and loads of other things.

 

[Bananasplit_00]

try to change your DNS? might help

[financialjuice]

8 minutes ago, Bananasplit_00 said:

try to change your DNS? might help

I changed it to the Google DNS from WIndows Auto DNS and still the same problem 

[financialjuice]

12 minutes ago, mariushm said:

Your data goes through multiple routers, switches and servers until it reaches Youtube.

All the links in the chain must work at high speed in order for you to get fast speed.

Under certain conditions, some fiber optic cables between certain locations can be overloaded and then your traffic gets slown down.

When you're making a speedtest, you're basically retrieving a file or uploading a file (with random data in it generated on the fly) to a test server that's maybe less than 100 miles/km away from you. There's maybe a handful of devices between you and that test server.

With Youtube or other websites, there may be 20+ devices between you and the website, or your data packets go across the ocean to a datacenter and that fiber cable across the ocean is overloaded with data from others.

 

You can download Visual Traceroute  - https://sourceforge.net/projects/openvisualtrace/ - to see how your data packets travel across the world to get to the remote machine. 

 

Also, Youtube may limit uploads on purpose - for example they may limit you to 100 mbps, or 300 mbps... they have lots of servers connected to internet with 10g or 25g or 40g network cards, and each of these servers receive videos from multiple people at the same time... so imagine 30 people uploading a video each to a computer with a 10g internet connection : that 10000 mbps gets split between those 30, some have fast connections, some slow.... so you may get only 100 mbps or you may get 1000 mbps, depends on time of day, the server you're uploading to and loads of other things.

 

Thanks for the help, I will take a look at the Visual Traceroute software, but the problem does seem to be all day, and not always YouTube, could be sites like Google, Twitter or TradingView that could be extremely slow, while a connection on the same computer via Wi-Fi, is perfect.

[iKingRPG]

Try using my a different browser. If you have extensions or something that can slow things down.

[Irving]

hi, i am having the exact same problem, it started with a win10 update, the speedtest and fast.com shows my speed right, i have 60 down 6 up.

 

all of the launchers i have, like steam, rockstar, epic, shows download speeds at 8mb/s thats the 60mbps, it just happens in the web browser, i´ve contacted microsoft about this problem, they just say that it´s my ISP but how do you explain that in those launchers the speed is the actual internet speed that i pay for.

anything that i´ve found in some forums  is that flush dns and change it for google´s will fix it, but no.

 

i have win 10 lastest updates, PC´s with ryzen and intel 1gbps ethernet cards, and before you tell me to check if the link is 1gbps thats check.

cable 5e 1.5m

16 ram

it happens in edge, chrome and firefox, i´ve tried downloading from ms servers, google drive, mediafire, mega, and all that servers shows max speed of 1.3mb/s or 10-11 mbps, i can download 2 or more files at the same time and the speed will add up, so if i download from 3 different servers, 3 different files, the speed of each is 1.3 but the sum of the 3 will be 3.9 or 4, so the bandwidth is there, just that the file is at thas specific speed, and i dont think reinstalling win will fix it because i have the same problem in two differnet machines with win 10.

 

before the win update i could download any file of any server at full speed, this just started with the win update, i have the google dns, reinstalling drivers, and nothing helps, the only thing that´s good is that at least the steam launcher doesn´t got affected., thanks i hope someone can help us and not just give us solutions that we´ve already tried, thanks

[sphbecker]

Try finding a large file to download and see what speed you get (the Ubuntu Full ISO is a good test file). If you get good download speeds on files, but a bad in-browser experience, then it is probably a browser issue.

 

Here are a few things it could be.

• Browser or browser ad-ins acting up (try using EDGE just as a baseline test)
• Anti-virus software acting up
• High CPU usage, make sure task manager shows <10% while nothing is running
• Router can't keep up load (speed tests require less router CPU than real-world traffic)
• VPN connection hurting speeds
• Over crowded WiFi (make sure you are connecting at 5ghz, not 2.4)

Try using the command prompt to ping google.com -t let that run while you do something else on the computer. If pings get a lot higher while using the internet, then the issue is probably either with your ISP, router or WiFi signal.

[Irving]

15 hours ago, sphbecker said:

Try finding a large file to download and see what speed you get (the Ubuntu Full ISO is a good test file). If you get good download speeds on files, but a bad in-browser experience, then it is probably a browser issue.

 

Here are a few things it could be.

• Browser or browser ad-ins acting up (try using EDGE just as a baseline test)
• Anti-virus software acting up
• High CPU usage, make sure task manager shows <10% while nothing is running
• Router can't keep up load (speed tests require less router CPU than real-world traffic)
• VPN connection hurting speeds
• Over crowded WiFi (make sure you are connecting at 5ghz, not 2.4)

Try using the command prompt to ping google.com -t let that run while you do something else on the computer. If pings get a lot higher while using the internet, then the issue is probably either with your ISP, router or WiFi signal.

about that, i´ve tried downloading uploading and downloading videos from my google drive, upload goes well, but download as i said just go about 1.3mb/s, antivirus win defender deactivated, cpu below 10 percent, no vpn, and wifi turned off, besides the epic games store, torrents, and any game launcher reach full speed 7mb/s, i´ve used edge, chrome, firefox, opera, even iexplorer, and the same thing happens, i think if the modem/router has something to do, even the game launcchers will fail and they don´t. i check in my laptop via ethernet, just the same, i dont know what else ccan i do, i thought about reinstalling win, but there are two machines with the exact same problem.

thanks for the reply.

[sphbecker]

Do you have another computer you can test on the same network? If you don't own one, maybe invite a friend with a laptop over? If you see the same thing on another computer, then it is going to be an issue with the ISP, Modem or Router. If the other computer is fine, then you have some kind of software issue going on. I would update drivers and firmwares. Not just for network devices; install latest BIOS, video and chipset drivers too.

 

Good luck.

[Irving]

14 hours ago, sphbecker said:

Do you have another computer you can test on the same network? If you don't own one, maybe invite a friend with a laptop over? If you see the same thing on another computer, then it is going to be an issue with the ISP, Modem or Router. If the other computer is fine, then you have some kind of software issue going on. I would update drivers and firmwares. Not just for network devices; install latest BIOS, video and chipset drivers too.

 

Good luck.

yeah bro, i checked with my laptop and have the same problem,via ethernet and wireless, i thing as you say ijt can be the modem/router, but the thing is on the game launchers and via torrent the speed is at max, have the lastest bios in both machines and chipset and network drivers, a just need to check in other network if the computers do the same thing.

 

[Irving]

just found a solution, it appears that with the update or some update comes with a mod to a config of tcp speed or so to "improve" the speed of apps that require som conections, i just follow the instructions in https://www.adslzone.net/2016/08/08/velocidad-internet-mas-lenta-tras-actualizarte-windows-anniversary-update-asi-puedes-solucionarlo/ and now my http downloads go as they should, full speed 62mbps or 7.3mb/s, i hope that help you