Slow Internet Speed on Windows 10 1809

Question

Dear Community,

I am getting a very slow speed internet after updating to 1809.

I raised the issue Microsoft but have heard from them, it's been more than 45 days.

I am on 100 Mbps plan, I am getting the speed on my mobile phone but on my laptop, I am getting max download speed of 5 Mbps and upload around 30 Mbps.

I have tried updating the driver but it says I am on latest version.

Please, help.

Best,

H

Answer 1

Hi guys,

I spend 3 days on this problem and i resolved this :D 

I hope i will help someone

First turn off p2p windows update

https://www.xplornet.com/support/internet/how-to-disable-peer-to-peer-updates-in-windows-10/

https://www.majorgeeks.com/content/page/how_to_fix_slow_internet_on_windows_10.html

[1] Open Group Policy Editor and navigate to Computer Configuration > Administrative Templates > Network > QoS Packet Scheduler.

Double-click on Limit reservable bandwidth. Click on Enabled, then change the Bandwidth limit 5!!!(not 0) to reserve a little bandwidth.

[2] Reset Windows Auto-Tuning Level

To find your current Auto-Tuning status, open a Command-Prompt and type in netsh interface tcp show global.

Look for Receive Windows Auto-Tuning Level. You should see normal. If so, you can move on.

Here are the commands to enable Auto-Tuning:

Enable: netsh int tcp set global autotuninglevel=normal

[3] Change advenced settings of the ethernet driver

Receive Side Scaling

Large send offload v2 IPV4/6

Magic Packet

Checksum offload IPV4

Gigabite Lite

Auto disable gigabite Flow Control Green Ethernet Energy-Efficient Ethernet Interrupt Moderation Jumbo Frames ARP Offload NS Offload Power Saving Mode

[4] Change duplex speed

https://www.linksys.com/us/support-article?articleNum=132174

1. Click the Pearl button and select Control Panel.
2. Click Network and Internet.
3. Click on Network and Sharing Center.
4. Click on Change adapter settings.
5. Right-click on Local Area Network and select Properties.
6. Click the Configure… button.
7. Select the Advanced tab.
8. Select Speed & Duplex in the Property section

Answer 2

THANK YOU!!! I was about to give up and this fixed it. I even installed a new wireless card - to no avail. I would be nice if this advice popped up in a search, although I never considered it was a Dell problem.

Answer 3

In the advanced settings of the ethernet adapter disable:

all the offload functions (TCP checksums, UDP checksums, Large Send offloads) 

Receive Side Scaling

Flow Control

Green Ethernet

Energy-Efficient Ethernet

Interrupt Moderation

Jumbo Frames

ARP Offload

NS Offload

Power Saving Mode

Now getting full speed.  Hope this helps someone

Thanks to you!

I've noticed yesterday that download speed on my desktop is limited to 0.34Mbps (according to the https://www.speedtest.net) while upload speed is about 94Mbps (that is fine). 

Web browser has being connected to the router very slow using the local Ethernet cable (so it was not the ISP connection problem). Also I've tested internet connection with laptop and it was fine.

So the problem is in the desktop (or Windows)

Thank to gods I've found your post and had disabled the  Flow controland Interrupt moderation options on the Realtek PCIe GbE Family controller. And download rate was increased up to 93Mbps (as it should be)

I had KB4523205 installed on 13 of November. This is the latest update listed in the Windows update history . There was no problem on 29 November for sure. Download rate has decreased significantly on 30 of November.

Answer 4

JSBach16, THANK YOU!!!! I have struggled for months with the slow speed issue and tried multiple solutions, none of which worked. Today I stumbled into this forum and found your answer, which immediately fixed the problem. I have 300 Mbps service from Comcast and was getting around 10 Mbps downloads. Now speedtest is showing 240+. Again, THANKS!

John