[SOLVED] Something is limiting my PC and its only my computer.

[ZachW]

I have no idea what is going on with my PC and I've done so much research to no avail. So my friend brought his pc over today so I could help him put some new parts in. I literally unplugged the ethernet from my pc and plugged it into his and ran an internet speed test once we got it up and running and he was getting 220mbps. Which is normal. Its what I pay for. But for the past few months, I can't get more than 16mbps when I run the same speed test with the same ethernet cable going to the same router. When I run my avast it comes up with no virus' or bugs. I've messed with the speed and duplex setting in windows went from wireless to ethernet. I'm not sure if I have a hidden virus the program can't find or if I have some hidden setting turned on that is limiting my speed. Any advice would help. Thanks.
OS Version: Microsoft Windows 10 Home, 64 bit, Build 18363, Installed 20200321013105.000000-240
Processor: AMD Ryzen 5 2600 Six-Core Processor, AMD64 Family 23 Model 8 Stepping 2, CPU Count: 12
Total Physical RAM: 16 GB
Graphics Card: NVIDIA GeForce RTX 2060 SUPER
Hard Drives: C: 111 GB (16 GB Free); D: 931 GB (244 GB Free); E: 3726 GB (3309 GB Free);
Motherboard: ASUSTeK COMPUTER INC. ROG STRIX B350-F GAMING, ver Rev X.0x, s/n 180733501400633
System: American Megatrends Inc., ver ALASKA - 1072009, s/n System Serial Number
Avast Premium Security

 

[Ralston18]

Verify that only one network adapter (either wired or wireless) is enabled on your PC. Be sure that Speed and Duplex are set to "Auto".

Download the network adapter's drivers via the applicable manufacturer's website. Manually reinstall and reconfigure.

From the Command Prompt, run "ipconfig /flushdns".

Look in Task Manager and Resource Monitor to determine what all is running, what resources are being used, and to what extent?

Check Task Manager's Startup tab for any unidentified apps being launched at start up. Look in Task Scheduler for similar activities.

Make and model router? The router's logs ( if available and enabled) may provide some clue.

Who has full admin rights to the router? You will need help from that person.

 

[ZachW]

Alright so here is what I did with no success @Ralston18
-Set the "Speed & Duplex" setting to Auto
-Reinstalled and reconfigured my wired network adapter
-Flushed the DNS
-Everything in the task manager seems to be using normal amounts of resources. There is no one thing that is consuming a lot of bandwidth/Startup seems the same way
-Motorola TM1602A MTA Modem/Spectrum Wave 2 Router Model RAC2V1S 802.11ac and I have full admin rights
I think it could be more a software issue because I used the same cable, router, everything and my friends PC got 220mbps and I got 16

 

[Ralston18]

Run "ipconfig /all" via the Command Prompt.

Post the results.

 

[ZachW]

Run "ipconfig /all" via the Command Prompt.

Post the results.

This is what it came up with

Windows IP Configuration

Host Name . . . . . . . . . . . . : DESKTOP-JAC11RT
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : home

Ethernet adapter Ethernet 2:

Connection-specific DNS Suffix . : home
Description . . . . . . . . . . . : Intel(R) I211 Gigabit Network Connection #2
Physical Address. . . . . . . . . : 0C-9D-92-64-AE-9E
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2605:a000:161f:851d::d9c(Preferred)
Lease Obtained. . . . . . . . . . : Friday, June 19, 2020 11:10:49 AM
Lease Expires . . . . . . . . . . : Wednesday, June 24, 2020 12:00:39 AM
IPv6 Address. . . . . . . . . . . : 2605:a000:161f:851d:a470:c9bd:2984:6260(Preferred)
Temporary IPv6 Address. . . . . . : 2605:a000:161f:851d:89ee:b788:681:a39c(Preferred)
Link-local IPv6 Address . . . . . : fe80::a470:c9bd:2984:6260%6(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.1.247(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Friday, June 19, 2020 11:10:49 AM
Lease Expires . . . . . . . . . . : Monday, June 22, 2020 11:10:49 AM
Default Gateway . . . . . . . . . : fe80::36db:9cff:fe7a:6132%6
192.168.1.1
DHCP Server . . . . . . . . . . . : 192.168.1.1
DHCPv6 IAID . . . . . . . . . . . : 67935634
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-23-9D-E7-A9-0C-9D-92-64-AE-9E
DNS Servers . . . . . . . . . . . : 192.168.1.1
NetBIOS over Tcpip. . . . . . . . : Enabled

 

[kanewolf]

I would disable IPv6 and see if that improves things.
You also have an Asus ROG motherboard. There is software called ROG Game First that will hurt network performance in many cases. Verify you don't have that installed.

 

[ZachW]

@kanewolf I disabled IPv6 and saw a very minor improvement, like 2mbps increase, and I do not have Game First installed.

 

[Ralston18]

Are you able to obtain a USB to Ethernet adapter or a PCIe Ethernet Network adapter?

Just for testing.

 

[ZachW]

Are you able to obtain a USB to Ethernet adapter or a PCIe Ethernet Network adapter?

Just for testing.

I can get a USB to ethernet by tomorrow and let you know the results then!

 

[ZachW]

@Ralston18 A ethernet to USB adapter did not increase the speed

 

[ZachW]

@Ralston18 A ethernet to USB adapter did not increase the speed

So I created an Unbuntu USB and booted from that and I was getting 220mbps on there. So now we know it something in windows

 

[kanewolf]

So I created an Unbuntu USB and booted from that and I was getting 220mbps on there. So now we know it something in windows

You could check your windows "autotune" option as shown in this article -- https://www.ghacks.net/2016/08/05/windows-10-limiting-internet-speed/
Some users do get improvement setting that to "disabled" ...

 

[ZachW]

Wow ok... I just went into the autotune setting and it was disabled even though I had never tampered with the setting before. That's so weird. I set it to normal and my speed instantly went up when I checked it! Thanks to everyone that helped!