[SOLVED] My desktop PC seems capped at 160 mbit/s after tests, updates and troubleshooting

[andreasgjrupnielsen]

My PC can not exceed 160 mbit/s (usually around 100 mbit/s) on a 1000 mbit/s connection. I have tested on different devices with the same cable and gotten 850 mbit/s.

The troubleshooting i have done so far is:
Updated BIOS driver
Updated NIC driver
Disabled IPv6
Ipconfig refresh + renew

I have no idea what to do next.
Here are my PC specs:
https://imgur.com/a/ZrFbFOG

 

[Ralston18]

Double check the adapter's configuration settings. Be sure that they match the router. If manually set, try auto. If auto, try manual.

Make and model router?

Are you able to run and post the results of "ipconfig /all" via the command prompt?

Who has admin rights to the router? You may need assistance from that person as well.

 

[andreasgjrupnielsen]

My router is the Sagem Fast 3890V3. I have confirmed with my ISP that it is 1gb compatible and as mentioned, tested on my Thinkpad E570.
Can you be specify what you mean with adapter configuration settings and how i match these with my router?

I have admin rights to the router and the necesarry logins.
Here is my ipconfig /all:
Windows IP Configuration

Host Name . . . . . . . . . . . . : DESKTOP-HPU4SSS
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Ethernet:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek PCI GBE Family Controller
Physical Address. . . . . . . . . : BC-AE-C5-2C-C8-7B
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IPv4 Address. . . . . . . . . . . : 192.168.0.10(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Wednesday, 9 January 2019 19.51.27
Lease Expires . . . . . . . . . . : Friday, 11 January 2019 12.35.15
Default Gateway . . . . . . . . . : 192.168.0.1
DHCP Server . . . . . . . . . . . : 192.168.0.1
DNS Servers . . . . . . . . . . . : 8.8.4.4
NetBIOS over Tcpip. . . . . . . . : Enabled

 

[Ralston18]

Speed & Duplex …..

Here are some links to help you get started:

https://www.drivereasy.com/knowledge/realtek-ethernet-controller-driver-not-working-windows-10-upgrade-solved/

(Reference Option Two)

For more information and guidance:

https://www.killernetworking.com/killersupport/driver-downloads/kb/faq/40-ethernet-link-speed

https://www.dummies.com/programming/networking/configuring-network-connections-windows-10/

(Please do not take offense at the "dummies" branding - many people read and reference their books.)

Specifically the adapter's advanced properties: Speed & Duplex. May be set for Auto Negotiate. Try manual.

Or if Manual - try Auto negotiate.

Be sure to only make one change at a time and keep notes in case you need to roll back a configuration change.