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Windows 11 | Windows 10 News on these iconic operating systems. => Windows 10 Help | How To & Fixes | Tips & Tricks => Topic started by: javajolt on November 08, 2015, 07:15:29 PM

Title: Slow WiFi connection speed on Surface Pro 4 or Surface Book
Post by: javajolt on November 08, 2015, 07:15:29 PM
If you just bought a new Surface Pro 4 or Surface Book, but find that your WiFi connection speed is slow, then you might want to check if this solution is something that can fix your problem.

(http://i63.tinypic.com/k06iwk.jpg)

In an answer to a question on Microsoft Answers, a Microsoft Support Engineer has said:

Quote
We have a known issue with .41 that results in low throughput with specific access points. The issue is specific to MAC layer aggregation (AMSDU over AMPDU) and only impacts a small subset of access points. We are working on a fix for an upcoming update. Until the fix is available, please update the registry key setting to work around this issue.
The workaround suggested is as follows:

From the WinX Menu, Run regedit to open the Registry Editor:

Navigate to the following key:

Quote
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\mrvlpcie8897
Look for the key called TXAMSDU.

Double click or tap on it.

Now modify its value from 1 to 0.

Exit the Registry Editor and restart your device.

twc