XPS 13 7390, slow upload speed - SOLVED

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Thanks - you have save me lots of time.  I was also only getting 0.1 Mbps upload when all my other wifi connected devices were 20 Mbps.

Can you give me a hint how to do that?

The setting is disabled in the killer control center, also https://support.killernetworking.com/knowledge-base/slow-speeds-and-trouble-accessing-websites-with-advanced-stream-detect-enabled/ does not work.

Uploads are extremely slow on my XPS 9310 but do work with full speed with all my other devices. Also when I plug in an external USB Wifi adapter to the XPS, I get the full upload speed again.

I also cannot open certain web pages...and some are extremely slow, including the Dell website.

The Killer wifi stuff is mainly killing my wifi and doing nothing else...optimized to death...

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I found a solution to everyone who has the same issue.

• I've removed the driver in device manager for the wifi card to get the windows default
• Reboot device
• Open Killer Control Center
• Go to Settings
• Now I was able to disable the Prioritization Engine

Result:

• Full download speed
• Full upload speed
• 20% faster ping
• Websites open again without errors
• Websites open a lot faster

I seriously don't understand what that killer stuff is useful for...

!! THIS WORKS !!

I was getting desperate because nothing I tried worked (Windows upgrade, Windows downgrade, Killer driver upgrade/downgrade, 2.4 Ghz vs 5 Ghz, ...).

Then I had the same idea as you and removed the Killer network card completely (Windows Device Manager) while checking the "remove driver software" checkbox. And after a reboot, I finally see normal upload speeds again

So thanks for sharing your solution, I confirmed it independently

Wow, me too.

After pulling my hair out trying to figure out why my upload speed was 0.1Mbps I also found out that the solution was to disable the 'Kill optimisation engine', then found this thread as confirmation of what I had done.

Not a good experience.

Thanks alot , it also works in an Area 51m R2, problem solved.

Dear "drtimoneill",

You deserve a medal... days and weeks I was trying to solve the upload issue I have with my Dell XPS 9310, getting around 600mb download from my fiber network, and an awful 15mb upload.

Turning off the prioritization in the Killer Control Center did the trick, and I now have same speed on both up- and download.

Many many thanks !

Exact same thing for me

Why does dell put this rubbish on the computer. What a waste of days I’ve had until i found this thread 

Thanks so much, spent days on this. Reinstalled windows 10, reset my router….

Loads of fiddling with network settings, turned off the optimisation (killer thing) and all good 

I had the same issue and found the same exact solution after endless tries. Even forwarded solution to Dell support to share to others. It’s just yet another proof of the unacceptable quality of this product. How can you ship devices with this kind of connectivity issues? It shows that Dell uses their customers to test the products, instead of testing themselves before release.

The Killer Control Center is an application provided by Intel for use with their wireless adapter on the Dell systems.

The benefit of the KCC application is that it provides the user with the ability to prioritize applications using the Internet Unfortunately the application is not very informative and can lead users to enable options and features that cause more harm than good.

Speaking from personal experience I discovered the inability to use the Windows Hello functionality to login to my XPS15 was the direct result of enabling a feature within KCC that was turning off various services in its effort to increase available memory. It wasn't until I spent a month that I discovered KCC to be the cause of my headache.

In closing the KCC can be helpful if/when it's configured properly for use, ensuring the system auto-connects to the best wireless access point, allocating Internet resources to preferred applications, etc., but the truth be told IMO most users don't really need this functionality. Hence it's more likely to cause grief than be of benefit.

Thank you.  That's brilliant!