Windows 10: Ethernet Link Speed at 10 Mbps

Hello, I have been having some slow ethernet. I went through the settings and in the properties for mt connection it says the link speed transmit/receive is at 10/10 Mbps. When I try wifi its capped at 520 Mbps but its very unstable most of the time, so I want to use ethernet. Here is some information about my situation:Using a Cat.6 CableTried reinstalling ethernet driversI tried resetting the network through the settingsI tried all of the steps on this page https://support.microsoft.com/en-us/windows/fix-ethernet-connection-problems-in-windows-2311254e-cab8-42d6-90f3-cb0b9f63645f?WT.mc_id=

:)

 

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?

 

KB5013889 update prevents ethernet speeds above 100 Mbps

Installation of "June 14, 2022-KB5013889 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows 11" prevents ethernet port speeds above 100 Mbps. Even after attempting driver reinstallation. Uninstalling KB allows full 1Gbps communication.

Driver effected:

• ProviderRealtek Semiconductor Corp.
  
• NameRTKVHD64.sys
  
• Version6.0.1.8186
  
• Date6/14/2017
  

 

Ethernet connection speed problem

Hi,

I have cat5 ethernet cable wich is supposed to handle 100Mbps my wifi speed can reach 50 Mbps when i plug the ethernet and try a speed test i only get 12 Mbps and when i go to settings->network->ethernet->change adapter setting i double click on ethernet i can see that im receiving about 40 Mbps and the sent is 13 Mbps at max how can i fix that?