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XPS 15 7590 disconnecting Wifi - my solution
Hello,
I experimented recently constant wifi disconnection on my XPS 15 7590, most of the time I had to execute diagnostic process from Windows and the connection was going back.
I fixed the issue and i have no problem anymore since the following modification.
From System and device management, find the Killer Wifi 6 Ax1650 and click on properties, then Advanced Tab, find the MIMO power save management and set the value to disabled.
Tell me if it works on your side.
Cheers,
RunM
DELL-Cares
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April 7th, 2020 17:00
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rickyleungyk
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October 26th, 2020 10:00
I recently had the same problem. My Wifi was disconnected after my laptop was running in standy mode. The worse thing was I had so much trouble turning on the WiFi afterward. Under device manager, it showed the driver was not working. I was using the latest driver I got from Dell (21.110.1.1). Reinstalling the older version of the driver did not solve the issue. I was trying to use the uninstaller from Killer site and reinstall the latest driver. No luck. To cut the story short, I disable the WiFI from the BIOS and reenable it made my WiFi showing up again. Then, I follow this thread and change my driver's setting of MIMO power save mode to "no SMPS". It seems to be working again. Thanks.