Windows 10: stuck at 100mbps even tho i have my ethernet plugged in

This is seriously frustrating me and i do not know what to do. My wifi router is WIFI 6, all other devices on the network run at 100% capacity with the wifi. But my PC struggles to get past 100mbps on wifi AND ethernet. I updated all of my drivers but idk what to do on the wifi sideThen i said "SCREW IT" and bought a ethernet cable. Since day 1, it has been so flaky, that i have a copy of linux on a USB ready to be imaged onto my computer and wanted to see if i could get help before i completely give up on windows. Here is everyhting i did to try and fix the ethernet: Tried different ports on

:)

 

Speed stuck at 100Mbps on 1Gb Fibre

PC is custom built

Speed and Duplex were set to Auto Negotiate but Ethernet Speed was stuck at 100Mbps which is why I have forced it to 1Gbps, but the Ethernet Speed remains the same 100Mbps

Please read the original post as stated the PC is connected directly to the Router via Cat8 Cable.

Power Managment is not the issue everything related to saving power is Disabled

I have even restarted my PC in Safe Mode with Networking and as stated before The Speed and Duplex remains set to 1Gbps but the Ethernet Speed is still at 100Mbps

This means it is not an external program throttling my speeds

 

Ethernet suddenly running at 100Mbps instead of 1000Mbps

Hi,

So, a few weeks ago I had some problems with getting 1000Mbps running (it ran at 100Mbps) on the motherboards ethernet port. It ended in me buying a PCI-E express card, and the connection started running at 1000Mbps.

The PCI-e card is of model TP-Link TG-3468.
The router is of model ASUS RT-AX82U.
My Windows Version is "Version 20H2 (OS Build 19042.746)"

Fast forward to yesterday, when I (unrelatedly) installed a switch between the router and a couple of other connected devices. I noticed that my desktop computer started running at 100Mbps again, and I can't get it to run at 1000Mbps. I'm not sure that it's related to me installing the switch (it shouldn't be).

Some things I've tried/other info:

• The desktop computer not getting gigabit speed is not connected to the switch - it's connected directly to the router.
• I tried connecting a Raspberry Pi 4 with the same cable that the desktop computer is using, and it gets 1000Mbps speed. So - the cable doesn't seem to be the problem.
• I tried switching the PCI-E slot that the gigabit card is installed into, and it doesn't make a difference-.
• I tried installing the latest drivers (both from TP-Link:s website, and Windows Update). No difference.
• I tried forcing gigabit speed in the settings of the adapter, but it still connects with 100Mbps.
• I tried connecting the desktop computer with a brand new cat 6 cable, and it still connects at 100Mbps.
• I think some Windows Updates was installed a few days ago. Don't know if it could be related.

Does anyone have any suggestions in getting my connection to run at 1000Mbps again?

 

Can I connect to my ISP@200mbps through ethernet cable when I have a TAP-Windows Adapter V9 card installed which shows 100mbps as it's speed?

Hi there,

I have recently bought a new laptop and have a 200mbps internet line installed. My issue is this. When I plug the ethernet cable from the router into my laptop and run a speedtest, the max I am getting is less than 100mbps, (usually around 93-95mbpsDL).

I then remove the ethernet cable and run the speedtest over the wifi and am hitting 200mbps, which is great.

The status of my Ethernet 3 adaptor lists 100mbps. Yet this is a top spec brand new laptop (07/2016). Am I right then in thinking that almost all new laptops shipped have 100mbps max DL speed limit?? And therefore any fast connection over an ethernet is just
wasted??

If so, this seems very odd to me. Can anyone help with this?

Thanks in advance.