Windows 8.1 Update 1 fixes the "slow Wi-Fi when bluetooth devices connected" problem

Discussion in 'Microsoft Surface Pro 2' started by kevinlevrone, Mar 9, 2014.

  1. kevinlevrone

    kevinlevrone Active Member

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    Hi,

    I had this annoying problem, when some Bluetooth device was connected to my Surface Pro 2, the Wi-Fi speeds would drop significantly to the point of becoming unusable. This was bearable with my mouse connected, but when the Bose SoundLink Mini was playing music from the tablet, I could barely run a YouTube video at the same time !

    I have to say that after I installed Windows 8.1 Update 1, this problem is gone. I have tested it multiple times, now the Wi-Fi speed is unaffected by my Bluetooth speaker and mouse being actively used at the same time. I have download speeds of a few megabytes, when I couldn't get over 20-50 kilobytes before. And I am only using the 2.4GHz band, the one affected by the problem.

    I was on the verge of spending around $200 for a dual-band router + new DOCSIS 3.0 cable modem, but for now I saved the money.

    I would like to hear others opinions (who installed the update) on this too. Was the problem fixed on your end ?
     
  2. InkyRag

    InkyRag New Member

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    I have Update 1 installed and just tested and my speed on 2.4Ghz is still about half with bluetooth turned on. I am quite sure this is a hardware/driver issue. Update 1 did not update any drivers that I could see.
     
  3. kevinlevrone

    kevinlevrone Active Member

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    My download speed was much worse with Bluetooth connected. Like 5-10 times lower than without Bluetooth. But only with bandwidth-consuming Bluetooth devices (eg. Bluetooth speaker), not with the Bluetooth mouse. Did you use any bandwidth-consuming devices, or just mouse ?
     
  4. InkyRag

    InkyRag New Member

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    Just a mouse
     
  5. sabesh

    sabesh New Member

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    I see no mouse lag while downloading now (on 2.4).
     
  6. sagatiba

    sagatiba New Member

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    What is the code of the update?
     
  7. kevinlevrone

    kevinlevrone Active Member

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    KB2919442, KB2939087, KB2919355, KB2932046, KB2938439, KB2937592. KB2919355 is the main one, the other ones are auxiliary.
     
    Last edited: Mar 10, 2014
  8. beq

    beq Member

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    I've also been forced to switch the Wi-Fi to 5GHz 802.11a when the SP2 is actively paired w/ my Plantronics BT headset (otherwise streaming video playback gets choppy). Looking forward to testing Win 8.1 Update 1...
     
  9. kevinlevrone

    kevinlevrone Active Member

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    This has certainly been fixed. Probably not the "halving the Wi-Fi speed when Bluetooth active", but still it's a huge improvement.
     
    Last edited: Mar 10, 2014
  10. kayzee

    kayzee Well-Known Member

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    Well I use Bluetooth audio and had to change to 5GHz because it made it run terribly. My mouse was affected too... not running Update 1 until it's officially released though, look forward to trying it out! In a way I'll be pissed if it is lol as I just spent £70 on my AirPort Express [​IMG]
     
  11. bluegrass

    bluegrass Well-Known Member

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    I've watch my update history in the control panel all the time and I've never seen any update called Update 1. I have noticed something peculiar though. It looks like every 4 or 5 days or so it installs System Firmware Update - 2/11/2014 again. Wish I knew what that was all about.

    I also run the Bose Soundlink via Bluetooth. The same one you mentioned. Fantastic little speakers. I also have the bigger one. I have never had a problem listening to music over the Internet using the Bose Soundlink.
     
    Last edited: Mar 10, 2014
  12. jnjroach

    jnjroach Administrator Staff Member

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    Update 1 was leaked by MS accidentally, they put it on their Update Servers for a group of testers and the registry key to allow the update was leaked. It won't be publicly available till April 8th.
     

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