Surface Pro 3 - Windows 10 - WiFi (slow or limited connectivity )

Anonymous
2015-07-30T14:16:39+00:00

Have a Surface Pro 3 that worked fine till I updated to Win10.  Now the wireless connection seems to randomly go to a "limited connectivity" mode.  Fortunately was purchased from Costco a coupe of weeks ago so it is going back there if we can't get this figured out by Sunday.

The Surface Pro3 is a flagship device - why in the world would you subject your customers to have to resort to looking for help in forums like this?

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

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Anonymous
2015-11-13T10:20:54+00:00

Everyone,

Build 10586 - the November Windows 10 update - was released yesterday, and it contains a newer Marvell wireless driver 15.68.9032.47 - people are reporting that this greatly improves wireless connectivity. Please download the large update, and if you used the registry hack, reverse it as follows:

Press Windows button. Search for regedit. Open it

  1. Navigate to the following path:

 HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\mrvlpcie8897

  1. Find the item labeled “TXAMSDU”. Double tap and modify the value from 0 to 1
  2. Restart the machine

Then test your connectivity, and post results.

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Anonymous
2015-11-13T10:44:26+00:00

Fred,

the November Windows 10 update to build 10586 has new wireless drivers. Can you download and install the update (it should be offered via WU) and let us know if this changes your connectivity?

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Anonymous
2015-08-05T18:12:39+00:00

Penny,

These kinds of issues WERE present on 8.1 for months but they mostly all cleared after several driver updates.

And that particular router is not one known to exhibit slow wifi. I'm suggesting you trade it because it is SP new and you can now get one with 10 pre-installed and not have to go through an upgrade AND because you have this issue. Getting it swapped will rule out a hardware issue and would be a step forward.

This is what *I* would do if in this situation.

For what it's worth - Microsoft needs to fix the driver and any underlying Win 10 OS issues. It took them 9 months to get a "good" Windows 8.1 wireless driver. For now, consider an external USB wireless adapter. I carry around a http://www.amazon.com/Edimax-EW-7811UTC-Dual-Band-Connectivity-Exceeding/dp/B00FW6T36Y

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  1. Anonymous
    2015-08-24T07:27:47+00:00

    Hi,

    On 22/08/2015 I purchased a SP3 (i5, 128GB, 4GB) which shipped with Windows 8.1. As soon as I applied the first few Windows Updates I was prompted to update to Windows 10 which I duly did.

    Prior/during the update, my SP3 was connected to my 5GHz (802.11n) SSID and functioned flawlessly.

    After the Windows 10 update, the network adapter sits at 0% utilisation most of the time and sometimes bursts to 3Mbps. Speedtest.net reports <3Mbps.

    I've connected to my 2.4GHz SSID and everything is fine, it appears that either Windows 10 or a recent driver update has killed 5GHz performance on the Surface with Windows 10 as there are at least 6 others with the same problem (links at the bottom of this post).

    Has anyone discovered a fix for this yet, or know that Microsoft are aware of this issue and are working on a fix?

    http://answers.microsoft.com/en-us/surface/forum/surfpro3-surfnetwork/surface-pro-3-download-speed-super-slow/fc2f227f-fabc-42ab-8686-ae6292f9a769

    http://answers.microsoft.com/en-us/surface/forum/surfpro3-surfnetwork/surface-pro-3-slow-wifi-on-5ghz/4d11e11f-1a7f-4178-8de8-42108844396e

    http://answers.microsoft.com/en-us/surface/forum/surfpro3-surfnetwork/preloaded-sp3-with-win10-and-slow-wireless/c99481a3-cf0c-4d1e-b751-2d70e0be502b

    http://answers.microsoft.com/en-us/surface/forum/surfpro3-surfnetwork/surface-pro-3-slow-5-ghz-wifi/a86d1d08-fe47-45f6-841d-93c6efa2a752

    http://answers.microsoft.com/en-us/surface/forum/surfpro3-surfusingwin10/surface-pro-3-windows-10-wifi-slow-or-limited/8a93b762-82aa-45e9-bec2-e09d641ff7e6

    http://answers.microsoft.com/en-us/surface/forum/surf3-surfnetwork/surface-pro-3-with-netgear-nighthawk-dog-slow/a28b43e3-5990-4573-a81b-566736cc46bf

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  2. Anonymous
    2015-08-24T10:56:41+00:00

    As you can see from the above thread http://answers.microsoft.com/en-us/surface/forum/surfpro3-surfnetwork/preloaded-sp3-with-win10-and-slow-wireless/c99481a3-cf0c-4d1e-b751-2d70e0be502b some folks have discovered that setting their router to 20MHz wide channel (or the equivalent lowers speed) is a kludge that helps. The setting depends on what router you have. This is not a problem with the routers, but for now this is helping. There may be other things going on as well.

    I've alerted my contact to this thread. MS is aware of these issues. As to timing of a fix, this is unknown.

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