Windows 10: Slow internet speed after updating to KB4558244

Recently I noticed a significant drop in internet download speed in Windows 10. Therefore I reinstalled it cleanly, without any drivers extra or software. After installing this update my download speed drops to a third of the normal speed. I can install and deinstall the update and notice the increased speed in my case from 10 MB/s to 30 MB/s. This is router independent Zyxel Z1 and Netgear R7800 tested.


Windows 10 May 2020 Update Build 19041.208 is supposed to solve a problem to fix an issue that fails to send NPLogonNotify API notifications from the credential provider framework, but has a very nasty effect on my internet speed.


My networkadapter is an Intel Dual Band Wireless AC7260. B.T.W. I have the same problem on all my computers with Windows 10 with different build-numbers and different wifi-adapter hardware.

:)

 

Slow Internet speed on only one computer.

Hi Cody,

Slow internet speed on one of your computer could be due to the following:

• Outdated network adapter driver
• Different Wi-Fi chipset
• Computer processing speed

Make sure that the network driver of your computer(s) are always updated.

We also suggest you to contact your internet service provider for them to check your internet connection speed and give you more information.

Feel free to post back if you have other concerns.

 

Asus N580VD slow internet speed

Hi Blair,

There are several factors that affect your internet speed. A few would be connection speed, network traffic, hardware capability, and type of connection. To help us identify what might be causing the slow internet speed on your laptop, allow me to ask the
following information:

• How's your laptop connected to the network? Is it directly wired to the modem/router or wirelessly connected?
• Were your other computers that were getting 100 Mbps download speed connected to the same network?
• Were there other devices connected to the network while you tried to download?
• Have you tried connecting your laptop to a different network? Did you get the same internet speed?

In the meantime, please run a speed test on your laptop. If the internet speed is slower that your internet package, then you may try to update the drivers of your network adapters to ensure that it's up-to-date. Please check out and follow the steps provided
on this link: Update drivers in Windows 10.

If you're trying to download while your laptop is wirelessly connected to your network, then kindly check its wireless adapter speed by checking its Wireless Network Connection Status. Follow these steps:

1. Right-click the wireless icon on your system tray, click Open Network & Internet settings, then click
   Wi-Fi.
2. On the right pane, click Change adapter options.
3. Right-click your Wireless Network Connection and click
   Status.

Please take a screenshot of the status page and kindly include it on your reply.

Looking forward to hear from you.

Regards.

 

internet speed slows down

Hi Barry,

Having an outdated Ethernet card driver, faulty Ethernet cable, and outdated modem firmware are a few factors that affect the internet speed. If you have a spare Ethernet cable, then I suggest replacing the one you're using to determine if its the cable
that's causing your internet speed to slow down.

You may also update the driver of your Broadcom Gigabit Ethernet card. If the issue is triggered by having an outdated driver, then you can have Windows to search automatically for updated driver software to help fix and address the problem. Kindly check
out Update drivers in Windows 10 and follow the steps provided in updating the drivers.

If the above steps won't help, then I recommend that you get in touch with the WOW support team to check the modem. Since they're your Internet Service Provider, then they are the appropriate support to look into the modem and perform necessary updates or
troubleshooting on the device.

Should you have further queries, feel free to post back.

Regards.