Slow WiFi connection speed on Surface

In an answer to a question on Microsoft Answers, a Microsoft Support Engineer has said: The workaround suggested is as follows: From the WinX Menu, Run regedit to open the Registry Editor: Navigate to the following key: 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. Let us know if this helped resolve your issue. Related reads you might want to take a look at: