Windows 10: why is my download speed fast and upload speed slow?

Having an issue with a Dell Optiplex7050 that I recently upgraded to windows 11. My dell is connected via internet and is getting close to 900mbps upload and >1 mbps upload speed which is pretty ridiculousNot sure what is happening here, problem is not with my ISP as upload speed is approx. 40 on other devices even over wireless connection.Tried updating drivers which didn't help and tried switching between IPv4 and IPv6 which had no effect. Not sure what the next course of action should be. Any help appreciated.

:)

 

Slow download speed fast upload on Ethernet.

Hi

If a website has a slow server, a fast internet connection may be experienced but may have very slow download speeds. Download speed will be affected with the website server as it also impact your internet connection speed.

You may try a test with other websites and check the results with the website that you are experiencing slow download speed.

Meanwhile, kindly click on this link and find the post created by Santos_Rai
to troubleshoot network and incoming internet connection.

Kindly post back and share with us the result.

 

Slow Download Speed

Hi,

Thank you for posting your query in Microsoft forums.

• I would suggest you to test the speed using any of the speed test website or app to confirm the upload and download speed.
• I also suggest you to reset the wireless router to check if that helps.
  
• You may plug in the Ethernet cable if available and check the speed.
  

Hope the information is helpful. Feel free to write to us for any other assistance with Windows, we’ll be glad to assist you

 

Browsing speed is fast, but download speed is 0

I'm currently using Windows 10 and netcomm nb604n router.

Problem:
Web browsing on chrome/edge/firefox works fast, but my download speed from majority of websites start around 10kb/s and eventually (in a few minutes) decrease to 0kb/s.

Here are some example files that does this:
https://atlas.hashicorp.com/laravel/boxes/homestead/versions/1.0.1/providers/virtualbox.box
Git for Windows (there is a download button)

When I am downloading from utorrent, or when I installed the Unity engine through Unity's installer, my download speed was fine.

Things that I have tried:

1. Running the test on speedtest.net. It says that my download speed is 18MB/s and upload speed is 1Mb/s. Of course this doesn't demonstrate the actual speed that I'll get when downloading/uploading from a server, but my ISP is using this to say that there is no problem on their side.
   
2. Taking my router, filter, and all cables to another house and downloading the same files that I couldn't download. This worked perfectly fine, so I'm guessing that my equipment is not the issue.
   
3. Using both wireless and LAN on a brand new computer and an old laptop. The problem exists in all cases.
   
4. Resetting and restarting the router. Did not do anything.
   
5. Changing the mtu settings as suggested on Windows 7, download speeds drop to 0 kb/s and the download has to be restarted
   Unfortunately this didn't solve my issue.
   
6. Calling my ISP to make sure that they weren't throttling my network. They are denying any fault on their end, and are claiming that there is something wrong with my computer or my router but refusing to provide a solution.
   

If anyone has any suggestions or ideas on what I could try to resolve this issue, please let me know!