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
    2015-08-09T11:13:01+00:00

    First, MVPs and Community Moderators are unpaid volunteers and do not work for Microsoft. We are your best advocates for problems. We escalate to internal sources when we can, but we have not magical powers to fix anything.

    Second, it is important to know where you are physically located. Why? Because non North American versions of the SP3 use different channels for WiFi and the North American SP3's don't support 802.11d regulatory domains.

    That's why I posted I was in the USA.

    If they are going to look at this issue, they need to know this information. I can't assume you are in the USA.

    I did some reading http://www.amazon.com/Industrial-Broadband-Huawei-B593-Supporting/dp/B00A2F6YKS and saw some comments about supported frequencies/channels.

    The above may be a wild goose chase, but the info would provide more reference info.

    It's really tough to analyze hot spot performance. I've never gotten particularly good perf with my iPhone 6 (not +) and my data plan is too limited for any real testing.

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  2. Anonymous
    2015-08-09T11:56:39+00:00

    "First, MVPs and Community Moderators are unpaid volunteers and do not work for Microsoft. We are your best advocates for problems. We escalate to internal sources when we can, but we have not magical powers to fix anything. "

    Thank you for clarification. I was barking up the wrong tree, apologies for that.

    "Second, it is important to know where you are physically located. Why? Because non North American versions of the SP3 use different channels for WiFi and the North American SP3's don't support 802.11d regulatory domains. That's why I posted I was in the USA. If they are going to look at this issue, they need to know this information. I can't assume you are in the USA."

    Physical location: Finland.

    Huawei B593 channel: 4, 2.4GHz band, 802.11ac

    iPhone 6+ channel: 1, 2.4GHz band, 802.11ac

    Because SP3:s behavior with these two very different routers is similarl y inferiorcompared with other computers' wi-fi speeds in the same physical surroundings, the importance of router types & channels in this special situation should supposedly be an insignificant factor.

    It's really tough to analyze hot spot performance. I've never gotten particularly good perf with my iPhone 6 (not +) and my data plan is too limited for any real testing.

    With my 150 Mbps LTE (4G) data plan my iPhone 6+ has attained max 110 Mbps in Helsinki center.

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