Windows 10: 16Mbps WLan speed drop with Bluetooth on

I am wondering if there is some problem with the Wlan Drivers / Windows.
I have a Intel AC7260 Wlan card with BT.
With BT off, I am achieving a speed of around 7,6 MB/s while transferring files over Network .
With BT on and no Device connected the speed stays at 7,6 MB/s.

Now, if I open Windows Settings>Manage Bluetooth the Wlan speed drops at once by around 2MB/s to around 5,2 MB/s and stays there. Once I close Settings, the speed goes at once up to the 7,6 MB/s.

Using the BT Device while transferring files the speed is 5,2 MB/s , no matter if Settings is open or not.

Seems that there is some problem with "Device Discovery" while it is not in Background.

:)

 

Download speeds over wifi considerably reduced

I'm getting reduced download speeds over wifi. LAN gets >40Mbps/16Mbps down/up while WLAN gets 1Mbps/16Mbps down/up (speedtest.net).

The speedtest starts relatively quick but then reduces speed. Shows same symptom when downloading a file in a browser.

Tried different PCE sockets, usb WLAN adpater, driver updates, MTU reduction to 1400, disable rsc, network settings reset, router reset, effect is not present on other wifi devices.

Windows 10 home 64bit

AMD Ryzen 1800x

Asus rog Hero vi x370

Asus PCE-AC56 adapter

see image for WLAN vs LAN speedtest results

 

N8 not using propper apn

Hopefully a final update. Everything worked out great with internet2.voicestream.com. I now am trying internet3.voicestream.com.

Either its a glitch, but a 3g speed test showec 16mbps. Im sure its a glitch since hspa is only 10mbps.