My computer demonstrates several serious bugs in Windows 10 Pro x64 networking performance. It is one of my goof around computers that I have reset using recovery tools or system images on multiple occassions when performance degrades.: The key hardware and software is:
--- Intel Next Unit Of Computing box, Model DC3217BY
--- Intel Core i3-3217U CPU @ 1.80 GHz
--- Intel N-7260 WI-FI / Bluetoothmodule (BT driver
WiFi driver ver 220.127.116.11 (provider Intel, signer Microsoft WHPC)
BT driver ver 19.1621.3340 (provider Intel, signer Microsoft WHCP))
--- Crucial M-SATA SSD drive
--- Corsair 4 GB DDR3 16000 memory (wrong slot)
--- logitech bluetooth K480 keyboard
--- logitech bluetooth M557 mouse
--- bluetooth headset or soundbar
--- Microsoft Windows 10 Pro x64
Version 1511, build 10586.494
Internet performance, as measured by the Ookla speedtest download metric, ALWAYS degrades when bluetoooth devices are connected and continues to degrade as bluetooth devices are used. This degradaton seems more rapid when high data rate (e.g. headsets) are used. Rebooting does not noticably improve performance. However, when we UNPAIR every bluetooth device and REBOOT the problem is cleared and the computer performs normally until bluetooth devices are connected again.
Initially the downloadspeed test is >40 Mbps (ISP limited). I can also rapidly load multiple tabs using EDGE, EXPLORER and CHROME simultaneously as expected and youtube streams great. Unfortunately, this does not last long after pairing bluetooth devices. Within a matter of hours and a few dozen websites visited, WINDOWS 10 PRO FAILS BADLY in the following manner.
--- Ookla speedtest drops to about 20 Mbps immediately after first bluetooth device is connected.
--- After a few hours use, the Internet browsers take long time when opening additional tabs or opening first tab in a second browser. Quite often the tabs do not load at all.
--- Ookla speedtest continues to report less than 2 Mbps in first browser tab opened after reboot.
--- Ookla speedtest either fails to load or gives results well below 1 Mbps when run in browser tab #2 and higher, especially when youtube is first tab.
--- youtube streaming cannot keep up and often fails outright.
--- sometimes, task manager shows 100% disk activity for several minutes and millions of page faults without significant data transfer rates.
--- occasional temporary system freeze upwards of 20 seconds, some freezes that require short power button for controlled shutdown, some freezes that require long power button for hard off.
--- several different BSOD reasons displayed
I really cannot understand why Internet degrades so badly over such a short time. It works great initially. The Internet Troubleshooter does not report any problem no matter how bad the browsers perform. Windows update says I have all the patches. Internet search offered procedures to clear DNS and IP stacks, but those did not improve anything.