Windows 10: Upload speed under 1 mbps on ethernet but all other devices on network good

So my PC is connected to my router via ethernet cable but my upload speeds are drastically low while my download speeds are normal. I know there's not a hardware issue since I brought the PC to another house and the upload speed was good there. Also I had gotten my router replaced as well yesterday and it was not that. Here is a list of things I have already tried- Flush dns- Ipconfig /release- Ipconfig /renew- Ipconfig int ip reset- netsh winsock resetand more commands in cmd-I ended up resetting Network settings and that did not work-After everything I resetted my pc in hope that it might wo

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Ethernet speed capped at 100 Mbps

I have a Lenovo Legion T5 28IMB05, and my Ethernet connection is capped at 100 Mbps.

Things I have already tried and didn't work:

• Switch to another cable. Originally, I had a CAT5e and as my speed was capped, I bought a CAT6. It didn't help (though I'm still using it)
  
• Force the driver to use 1000 Mbps full duplex
  
• Try my cable and router with another PC. It works
  
• Try to boot from a live USB running Ubuntu 21.10. It also didn't reach full speed
  

The funny thing is that if a plug a USB Ethernet adapter (TP-link UE330), it reaches gigabit speeds with that cable and router; and then if I reconnect the cable to the Ethernet port on my PC, IT WORKS at gigabit speeds for as long as I have the PC turned on. When I restart, it goes back to 100 Mbps.

As of course, I prefer not to have to depend on a USB dongle to reach full speed on my network, what can I do?

 

Relatively slow internet upload speeds.

My old computer and my wife's computer had around 850 Mbps upload speed via Speedtest. Wife built me a new computer using an ASUS TUF gaming Z590 Motherboard and intel chip. Using the same Ethernet cable as before, which use to garner the 850 Mbps speed, the new computer only produces an upload speed of about 32 Mbps. Same cable! Same Modem, Same router. Wife's computer hooked to the same router still pushes 850 Mbps upload. We have updated cFosSpeed program to latest version. Running Windows 11...Switching Ethernet cables does not help... Any suggestions????

 

Sudden large disparity between download & upload speeds.

(First post: Win 10 1809) Hello. I have encountered what seems to me to be a strange phenomenon: Recently upgraded to "1000 Mbps" fiber internet provider. Initial speeds for both download and upload speeds spread across the 900's, with upload speeds consistently a bit higher than download speeds. Yesterday one desktop seemed to have internet connectivity issues. I noted that the desktops Ethernet connection had for some reason adopted the name of one of our wireless routers: What had been "Network 2" was now "(SSID) 2".

This Dell XPS desktop (Win 10 Pro 64b, Version 1809) has both wired and wireless network connections, with the later used to connect to various peripherals. When I checked into Speedtest.net, Download speeds remained in the 900's, but upload speeds dropped below 50 Mbps. I went though various network troubleshooting steps and a number of restarts, this disparity persisted. Other than the lack of a name change to wired network connection, this disparity was also obtained on another desktop on the same network. However, speed checks on iOS tablet reveled no disparity whatsoever, suggesting that the phenomenon is limited to Windows machines.

Given my naive and limited understanding of Windows networking, I was hoping someone might help me to better understand the issue and, perhaps, suggest a fix.