Article updated 6th Jan 2016 – please see addendum at the end
Some users of Windows 10 (any build number) have complained that their WiFi has been going slow – VERY slow. Separately, some people, who haven’t noticed that they have a slow WiFi connection, have complained about other symptoms related to a slow network connection – like poor quality Skype, Lync and Skype for Business calls.
I have discovered that the problem is related to Bluetooth being turned on.
Here are my speeds from the Thinkbroadband Speed Test (a far more accurate test than others out there) showing my speeds with Bluetooth turned off and then on:
To cut a very long story of testing with various WiFi and Bluetooth drivers and testing with PC’s with different WiFi and Bluetooth hardware, I have discovered what causes this problem (but I don’t know why – yet).
The fix, is simply to turn OFF location in Settings –> Privacy –> Location:
Obviously, I would love to know if this fixes slow WiFi for you – so please leave a comment.
Addendum 6th Jan 2016
After further testing, I have discovered the problem/fix to be much more subtle and while still related to the Location state, it doesn’t actually matter what state it ends up in, as long as the state is toggled.
i.e. If your have WiFi AND Bluetooth ON AND your WiFi is running slow, simply try changing the Location state to the opposite of what it currently is and then change it back again.
For me, on a new install (any W10 build) or rebuild/update, if WiFi and BT is initially ON by default I have SLOW WiFi whatever the state of Location i.e. Location can be initially on or off, it doesn’t matter. What is important, and the fix for me, is that the state of Location just needs to be toggled in order for slow WiFi speed to recover.
© Woody – January 2016
[This article is original work – over which I own and retain copyright.
You are welcome to use and otherwise republish this article as you will – but I just request that you attribute me as the original author. Thanks.]