I have found a same issue but this forum is for laptops. But this explains this issue.
WiFi deteriorates after closing the lid on Surface Book connected to Surface Dock
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Anonymous
If I close the lid of my Surface Book while connected to a Surface Dock, WiFi speed will drop from 54 Mbps to as low as 1 Mpbs. The WiFi router is an AT&T U-Verse Pace 3801 HGV and the power setting for close the lid while plugged in is Do Nothing. I am taking this thing back to the store for a refund if it can't be fixed.
Surface | Surface Book | Network
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Anonymous
2017-04-17T13:12:19+00:00 -
Anonymous
2017-04-17T02:22:23+00:00 Same problem--but no surface dock involved. I'm connected to a display with Mini Displayport -> DVI cable. I've done experimenting with various places in my wifi bubble with various devices.
No question the poor wifi is connected to the Surface Book lid being completely closed. When it's almost shut---still no problem.
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Anonymous
2017-04-07T02:54:45+00:00 I started this thread a long time ago. The reason for the problem is the location of the WiFi antenna at the front top of the screen, when the lid is closed the antenna is isolated by the Faraday effect. Unless you are sitting right next to the access point the signal will deteriorate. Future Surface Books may not have this problem if Microsoft moves the antenna, but for those of us that already own one the solutions are few and unsatisfactory:
- Leave the lid open
- Get an external WiFi adapter
- Connect the Surface to a Surface Dock or equivalent and use an external WiFi adapter or Ethernet connection on the docking device
Really bad UX design by Microsoft.
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Anonymous
2017-04-04T17:02:13+00:00 Thanks Tim!
I don't have a real docking station. It's just a USB dual display adapter.
Maybe I will invest in one and use your solution. I have a USB WiFi adapter that I could use now, but then both of my USB ports would be used.
Again, I don't feel I should have to be rigging things up for a device that costs this much.
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Anonymous
2017-04-04T14:30:50+00:00 It's far from ideal, but as I mentioned earlier in this thread - if you're using a docking station, just connect a USB wi-fi adapter to the hub. Then set the USB wi-fi adapter to connect to your home network, and your internal adapter not to. Anytime you dock it should switch over to the USB wi-fi.
Hardly ideal, but it works. The only slightly annoying thing is if you're not docked, you'll need to manually connect to your home wi-fi. I haven't figured out a way to tell it to disable one adapter when another one is present - that would make me pretty much OK with the deficiency.