Surface Pro 3 Slow WiFi - 72Mbps Max (driver)

I don't have anyone around me using 5G band other than my wireless phones at home. So I think that that's part of the problem. I wonder the phones at what or close to what channel they are transmitting.

that explains things. 5.8GHz phone and 5GHz wifi - least interference using lower channels. I use DECT 1.9 GHz phones here.

so I see why you have issues with the upper bands,

It would be interesting to see if others with issues also have 5.8Ghz cordless phones.

Yes, that would be very interesting analysis.

the higher end channels for 802.11n in the US, 149-165, correspond with

5.745Ghz-5.825Ghz.

5.8Ghz cordless phones use 5.725-5.850Ghz. So yes.

there is overlapping  there.

Well, I think it is about having more time with the device and the new updates.  Since 7/16 I had to reboot a lot more times than the week before the last update.

I had a 5 GHz phone but I bought a new Dect 6.0 phone system Saturday.  It does not seem to make any difference on the behavior with the SP3.  Of course I don't have the base anywhere near the router.  I have heard that some people do have an issue with WiFi and some models of Dect 6.0 phones.  For this particular problem it did not seem to make any difference for me before or after.

The updates overall made the SP3 finally usable, don't get me wrong.  At least it only drops WiFi every so often now.  But I still hope for Microsoft to fix the problem permanently given that this machine is being compared to the top of the line machines out there, that is all.

FWIW, I don't have any cordless phones. 

My base stations are set to choose channels automatically so I assume they pick the best available. 

As others have experienced, it is only my SP3 that suffers poor link speed to the router.  No problems with other devices. 

I so far have not experienced the problem with dropping or "limited" connections. The link stays up but just stays between 11-72 Mbps when my other AC devices are at 700+

have serious problems with wifi connectivity. I've installed all the updates, including the latest on July 16 that was supposed to fix this problem. The problem extremely annoying because you can not have stable connectivity. the signal is lost when you open multiple applications. even with one apllicacion the connection is very slow. Constantly I have to turn off and turn on the wi fi. It is a shame that microsoft has not done the necessary tests before launching this excellent product to market. 

I hope microsoft respond quickly and fix this problem. It is said that the connection depends on many factors. However, several products are connected to the same network as computers, ipad and android phones have no connectivity problems, only the surface pro 3 has serious problems.

Yesterday I bought a new MS Surface Pro 3 (128GB). I wanted it as a replacement to my old Acer W500 upgraded to Win 8. So I spent whole day loading some WinStore Apps and Desktop Apps. About 20 GBs. I noticed my downloads progressed very very slow. So today I checked speed of my Internet connection. I have a router that provides Internte access to 2 desktop PCs via cable (ethernet) and to various devices via WiFi. I pay for about 50 Mbps speed. Speedtest results showed that my PC has a strong 61 Mbps connection, my old Acer tablet achieved only 12Mbps (WiFi) and my brand new Surface Pro 3 - only 4Mbps(!). 

I still stuck with updating my Google Drive and OneDrive folders on SP3. If I go to TaskManager/Perfomance, WiFi tab shows that my speed is capped at 4.1Mbps no matter how much apps are downloading stuff from net. 

Surfing on web and googling showed that some owners experienced same problems after some update, but I received my SP3 few days ago, so, probably, this update was already installed, because my WiFi issues began right after I turned on my tablet.

So the question is: Is it possible that there are some kind of additional settings I have to fine tune to make WiFi connection faster? Or are there some kind of brand new prerequisites for SP3 that my router doesn't meet?