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

Anonymous

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.

0 comments

Answer accepted by question author

Anonymous

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

Navigate to the following path:

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\mrvlpcie8897

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

Then test your connectivity, and post results.

0 comments

Answer accepted by question author

Anonymous

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?

0 comments

Answer accepted by question author

Anonymous

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

0 comments

417 additional answers

Anonymous

2015-09-11T16:52:42+00:00

what is the version of the Marvell wireless driver in the new one that came with 10 pre-installed?
Was this answer helpful?

0 comments No comments
Anonymous

2015-09-11T16:48:38+00:00
I am experiencing same 5GHz issue in Surface 3, with windows 10.

Below are my test scenarios and results. As of yet I have not seen a fix in any of updates provided by Microsoft.

I am using ASUS AC1900, Dual Band (2.4 GHz and 5.0 GHz). The expected speed based on the Internet service provided by my service provider is 60 - 80 Mbps downstream and 8-10Mbps Upstream
1. Surface 3 with Windows 10. WIFI works well when connected to the 2.4 GHz band. (60 – 80 Mbps downstream and 8-10Mbps Upstream, expected speed)
2. Surface 3 with Windows 10. WIFI very slow transmission when connected to 5.0 GHz band less than 2 Mbps downstream and less than 1Mbps upstream.
3. Surface 3 upgraded to windows 10 from windows 8.1 works well with the 5.0GHz band. (60 – 80 Mbps downstream and 8-10Mbps Upstream, expected speed)
4. Surface Pro3 with Windows 10 (clean install using ISO installation file from Microsoft) is performing to the expected speed of the service provided on both 2.4 and 5.0 GHz bands.
It appears any Surface upgraded to Windows 10 from Windows 8.1 works fine using 5GHz. But Surface fresh out of box with Windows 10 has issue with 5GHz.
Was this answer helpful?

0 comments No comments