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Abovan
Founder
Founder

Issue with Windows 11 and Killer Networking

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Greetings team!

Ok. Having a fun little problem. I upgraded to Win11. This behavior is the same when doing an upgrade or a fresh install.

On Windows 10, everything works fine, including 4k streaming. I go to 11, same hardware and network, I get over 50% packet loss, and of course the stream is unplayable. This behavior is repeated on Luna, GamePass Game Streaming, and GeForce Now. I drop from my Wired card and tried wireless (just for giggles), same behavior. One of my USB hubs has a generic gig ethernet on it, so I gave that a try. Streaming services are fluid and working as intended.

I downgrade back down to 10 on the same hardware, everything is back to normal.

The built in networking on my laptop is a Killer E2500 for the wired (running driver 9.0.0.49), Killer Wireless AC-1550 for the wireless (running 22.70.0.6)

Anyone else with a similar config having problems with their streaming apps?

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Best Response
mefinsf
Community Member

I didn't try a wired connection, but did experience poor networking performance (with Stadia being unusable) with Windows 11.  Back to Windows 10 - no issues. 

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Abovan
Founder
Founder

Oh boy!  It's a confirmed bug with Windows 11 and networking gear from Killer and SmartByte.  Both are owned by a small outfit called.....  um... Intel and Dell.

 

As much as I want to rail on the part manufactures, sticking to the facts here.  There is a known issue that messes with how the devices send UDP packets under certain conditions, including video streaming and some VPN software.  (After posting the message above, YouTube was also a chore to run.)

There is a fix targeted to come out on Oct 12.  Hopefully, we'll see some relief on that.  I did roll back to Windows 10, like what @mefinsf did, but would love to have all of my entertainment options available to me when I do move to Win 11 full time.

Sources:  

Microsoft Win 11 Known Issues (last one on the page)

Windows 11 known issues and notifications | Microsoft Docs

Some Media Outlets picking up on the story.

Windows 11 Killer networking bug may slow connection speeds in some games | PC Gamer

Windows 11 issues mounting, networking software may slow down internet speeds | TechSpot

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2 Replies
mefinsf
Community Member

I didn't try a wired connection, but did experience poor networking performance (with Stadia being unusable) with Windows 11.  Back to Windows 10 - no issues. 

0 Kudos
Abovan
Founder
Founder

Oh boy!  It's a confirmed bug with Windows 11 and networking gear from Killer and SmartByte.  Both are owned by a small outfit called.....  um... Intel and Dell.

 

As much as I want to rail on the part manufactures, sticking to the facts here.  There is a known issue that messes with how the devices send UDP packets under certain conditions, including video streaming and some VPN software.  (After posting the message above, YouTube was also a chore to run.)

There is a fix targeted to come out on Oct 12.  Hopefully, we'll see some relief on that.  I did roll back to Windows 10, like what @mefinsf did, but would love to have all of my entertainment options available to me when I do move to Win 11 full time.

Sources:  

Microsoft Win 11 Known Issues (last one on the page)

Windows 11 known issues and notifications | Microsoft Docs

Some Media Outlets picking up on the story.

Windows 11 Killer networking bug may slow connection speeds in some games | PC Gamer

Windows 11 issues mounting, networking software may slow down internet speeds | TechSpot

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